Battery issue and restoring completely to stock - Xperia Z1 Q&A, Help & Troubleshooting

Hello everyone,
I have been using a Xperia Z1 for around last 6 months and updated to Lollipop 5.1.1 two months ago. Everything was fine until last week when my phone started to get affected by the battery bug.
The phone works fine and the battery gets discharged in leaps. For example, when I use the phone from 100%, it goes down in the usual way, let's say for 1 hour usage it drops up to 90% which is quite normal. But, when lock the screen and keep it idle for sometime and when I take it back, the battery has dropped a leap, usually by 10-15%.
Yesterday, I was using the phone normally and kept it idle for the entire night and battery has been dropped only from 85% to 79% without stamina mode. That's good. However, when I restarted the phone in the morning, the battery suddenly dropped to 18%. :crying:
I tried calibrating the battery, charging/discharging cycles and removing batterystats.bin. But, the issue is still here.
I think my phone has been affected by the famous Xperia battery bug in Lollipop which means that my battery is damaged. But, before replacing the battery is there anything else that I could do to overcome the issue. Any suggestions are greatly appreciated.
+ My phone is rooted on stock 5.1.1 (14.6.A.0.368) with XZDualRecovery and locked bootloader. If I repair the phone with PCC will it cause any harm or bricking since because of the customer recovery?
Claiming warranty is out of option since the phone has been rooted and flashed with custom recovery.

I don't know why people call it a lollipop bug. There will be a time a battery reaches its end of live. That's what has hit you right now. Your descripte symptoms are from a dying battery. I have seen some dying battery's from me or friends. The battery was holding the charge normally and suddenly no more.
Replace it and all should be fine again.

motorazrv3 said:
I don't know why people call it a lollipop bug. There will be a time a battery reaches its end of live. That's what has hit you right now. Your descripte symptoms are from a dying battery. I have seen some dying battery's from me or friends. The battery was holding the charge normally and suddenly no more.
Replace it and all should be fine again.
Click to expand...
Click to collapse
But, can this happen on a phone that is just 7 months old? Thats what makes me to think that this could be a bug.

I have the same issue, but mine drops to 0% and after waiting some time and booting it the percentage is back up. I have my phone for 2 years now, and the problem appeared in Lollipop also.

aquaboy11 said:
I have the same issue, but mine drops to 0% and after waiting some time and booting it the percentage is back up. I have my phone for 2 years now, and the problem appeared in Lollipop also.
Click to expand...
Click to collapse
It's okay for a 2 year old phone as Lithium batteries wear out with time. In my case, it's kinda disappointing...

So, after searching the entire Internet, I can understand that this is a common issue with Xperia Z1 and Z1 compact and replacing the battery seems to be the only possible solution. I searched EBay for a battery but couldn't choose a good quality one. Can someone guide me on this please?

UnlimitedBB said:
So, after searching the entire Internet, I can understand that this is a common issue with Xperia Z1 and Z1 compact and replacing the battery seems to be the only possible solution. I searched EBay for a battery but couldn't choose a good quality one. Can someone guide me on this please?
Click to expand...
Click to collapse
Your battery is definitely dying and it has nothing to do with roms. Get a battery that the seller claims to be OEM. That's your best bet...

optimumpro said:
Your battery is definitely dying and it has nothing to do with roms. Get a battery that the seller claims to be OEM. That's your best bet...
Click to expand...
Click to collapse
Thanks for the tip. So, I searched for an OEM battery and ordered it along with some tools required for the disassembling. I will keep posted once I replace the battery.

UnlimitedBB said:
Thanks for the tip. So, I searched for an OEM battery and ordered it along with some tools required for the disassembling. I will keep posted once I replace the battery.
Click to expand...
Click to collapse
Don't think that it will resolve your problem.
I changed my internal battery about one month ago and when two weeks passed I started to experiment the same bug ? again
It's not only hardware problem, it also software problem, I believe.

D_Vovan_238 said:
Don't think that it will resolve your problem.
I changed my internal battery about one month ago and when two weeks passed I started to experiment the same bug again
It's not only hardware problem, it also software problem, I believe.
Click to expand...
Click to collapse
You are correct becouse I experience som drops in the range of 5-20% in less than a minute and once 30%. All the time while the phone was in standby mode except once where it did it right in my face (10%). My battery status is reported being fine. I also forced shutdown the phone as per the calibration method for non-rooted phones. Though I did notice dalvik cache wasn't rebuilt and so there is no way to have it refreshed manually except system updates which does this.
Anyway I did remove some apps and did some changes and after this I have not had any sudden drop for weeks. Two of the apps where Truecaller and Facebook official app. Will check though if it was a third one to. I believe one of these or both where playing havok. Especially the Facebook app as it takes liberties I find suspicious, is buggy, can crash the kernel (any app that can do that is doing shady work IMO) and had the addition of a "Video Player" service that was running permanently after you launch the FB app once. I instead use Metal for Facebook now. Pretty much same experience, only 10MB RAM used instead of 90MB and no batter y drain either or any other problem. So in short I believe one of these where the culprits and since many use the FB app that might be the one playing badly with Sony Z1 system.
And If you use Adguard also check if there are apps getting high ratio of ads blocked (or analytics data blocked). Might be some dont get proccessed right in the battery system due to it calculating it wrong. Google Frameworks, Google Contacts, Play Services, Mobilestorage Checker and a few more I disabled the ad filtering for. Though this did not change the battery drop problem previously. It only went away when I uninstalled named apps above.

Related

[Solution] Flickering screen, poor battery backup, sudden discharge [n7000, Note]

A month or so back I started facing weird problems with my year old Galaxy Note, n7000:
1. After reboot, the battery would go down by 15-20% and then without charging the battery %age would gradually increase by 5-10%
2. lots of flickering on screen followed by auto shutdown whenever the battery %age went below 15-20% after normal usage
3. Very poor battery backup (I blamed most of this to the Rom Mods I had been installing at that time- only partially correct!)
I am sure that many of you might have been facing such problems and running from forum to forum to get a solution- I did.
Solution:
Get your battery replaced- most of us have had our Note for a year and some months now...life of the battery is approx 1 year for regular use, thus, the stock battery that we got with our Note is well past....
I never faced the above problems after battery replacement!
Hope this helps others like me!!
I started having this problem after getting a new battery, my old battery which was weak never showed flickering. But this new one which is original samsungs battery at below 15% show flickering and sudden discharge despite a good battery time.
Sent from my GT-N7000 using xda app-developers app
qazibasit said:
I started having this problem after getting a new battery, my old battery which was weak never showed flickering. But this new one which is original samsungs battery at below 15% show flickering and sudden discharge despite a good battery time.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
I'm on the very same situation. Battery that cames with NOTE is exhausted now so I have got a new one just to find out now problem is even worse!! It can begin flickering with 40% juice battery!
The new replacement battery seems to be 100% samsung's original but... who knows??
straycat said:
I'm on the very same situation. Battery that cames with NOTE is exhausted now so I have got a new one just to find out now problem is even worse!! It can begin flickering with 40% juice battery!
The new replacement battery seems to be 100% samsung's original but... who knows??
Click to expand...
Click to collapse
I got rid of the damn problem after getting new ones...Is it possible that the batteries you bought are not genuine/fake?
Which ROM are you on- the Stock one or some mod-rom?
When I was searching for a solution to my battery issues some members suggested battery-calibration and full charge-full discharge cycle to get rid of the problem. Both the solutions suggested at that time did not work for me.
There was also a solution about cleaning the mini-USB connector which gets seriously dirty collecting grime from our pant pockets! That did work for me initially when the battery was good.
Please let me know if any of the above helps you.
N7000 Battery issue - Flickering and shutdown
knedge said:
I got rid of the damn problem after getting new ones...Is it possible that the batteries you bought are not genuine/fake?
Which ROM are you on- the Stock one or some mod-rom?
When I was searching for a solution to my battery issues some members suggested battery-calibration and full charge-full discharge cycle to get rid of the problem. Both the solutions suggested at that time did not work for me.
There was also a solution about cleaning the mini-USB connector which gets seriously dirty collecting grime from our pant pockets! That did work for me initially when the battery was good.
Please let me know if any of the above helps you.
Click to expand...
Click to collapse
Guys - Me too have the same issue, but this started immediate after updating the Jelly Bean 4.1.2. It never happened while on official ICS.
I could observe the battery is very much thick now, which is a symptom of over charging. The screen flickers and brings phone down abnormally.
After connecting the charger for a 5 seconds, suddenly the battery level shoots to original state from where it went down. Most frustrating, it happens very frequently.
I am not sure if the same will persist even after replacing with a new battery. Or I would need to go back to ICS again.
Any suggestions?
Cheers!
If the battery is bloated then it's better to get a new one.
Erm... is this thread still up?
I just wanted to know if the bloated battery would cause boot issues, stuck on the model screen?
I would guess the problem is with the bloated battery's voltage is insufficient to power up the systems... i guess
I need confirmations... thank you in advance
sarf2k4 said:
Erm... is this thread still up?
I just wanted to know if the bloated battery would cause boot issues, stuck on the model screen?
I would guess the problem is with the bloated battery's voltage is insufficient to power up the systems... i guess
I need confirmations... thank you in advance
Click to expand...
Click to collapse
That never happened to me with a bad battery. What version of Android are you running?
i changed my battery just a two weeks before and the battery backup has decreased very much
can someone help me how to check whether my battery is in good shape or not ?
What do you mean with "battery backup"? Maybe "capacity"?
What battery did you buy?
eikiel said:
That never happened to me with a bad battery. What version of Android are you running?
Click to expand...
Click to collapse
4.1.2 xxlsz deodexed by eybee
The problem is, after I restored most of my data, apps and system data separately, the screen flickers a little bit and then the restore process completed without any problem. After that I restart the phone, stuck at the model screen only for unknown reason. The data is also from previous xxlsz which I had trouble with some system app crashed but fixed by returning to another backup though.
So, currently I'm leaving the phone without any data restored, only stock fresh out of the box xxlsz with titanium backup only installed. So far the phone is quite stable, I've turned off the adaptive power adjustment in display as well as lowest brightness just in cast it might occur again.
I've been reflashing xxlsz a lot this morning, over 3-5 times due to stuck in boot logo and model screen. Even though flashed the latest philz 4.90.8, it would just revert back to the old philz 4.8x with cwm 6.0.2.8
One last thing, my batter bloated pretty bad about half of it has been expanded. I mean from the bottom part (no copper connections), half of it has reached out of the body.
Well,
hppend to me b4, flickering issue below 10%. It was bloated. Bought new one. Bloated again after 6months. Again, bought a new one and it can last only 7 hrs without switch on data.
This is what we get from massive production company.
Sent from my GT-N7000 using xda premium
By battery backup I mean the time my battery survives after a full charge is like only 2hrs with minimal use :/
Sent from my GT-N7000 using xda premium
Amogh k shandilya said:
By battery backup I mean the time my battery survives after a full charge is like only 2hrs with minimal use :/
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Maybe you bought a "bad" battery...
Ok, successfully restored to another checkpoint, now trying to extract a stock build.prop from stock xxlsz, eybee's build.prop I believe been making my phone goes hot and consumes more power than normal (I guess)
damn issue as well
beekay73 said:
Guys - Me too have the same issue, but this started immediate after updating the Jelly Bean 4.1.2. It never happened while on official ICS.
I could observe the battery is very much thick now, which is a symptom of over charging. The screen flickers and brings phone down abnormally.
After connecting the charger for a 5 seconds, suddenly the battery level shoots to original state from where it went down. Most frustrating, it happens very frequently.
I am not sure if the same will persist even after replacing with a new battery. Or I would need to go back to ICS again.
Any suggestions?
Cheers!
Click to expand...
Click to collapse
I seem to have the same issue
1. Battery drains rather bad
2. Screen flickering
3. Auto shutdowm
Used the battery in my wifes n7000 , however no issues at all
Only seem to happen on my phone.
I flashed it to stock std 4.1.2 , however problem still persist. auto shutdown few times a day
Gets worse when i use an external SD
@amogh you can check your battery voltages and battery temperature and compare that to optimum values. you can also use apps like AnTuTu battery tester.
Satesh said:
I seem to have the same issue
1. Battery drains rather bad
2. Screen flickering
3. Auto shutdowm
Used the battery in my wifes n7000 , however no issues at all
Only seem to happen on my phone.
I flashed it to stock std 4.1.2 , however problem still persist. auto shutdown few times a day
Gets worse when i use an external SD
Click to expand...
Click to collapse
Flashing another rom again wont solve much of the problem, if you happens to have the phone stuck in around bootloop and able to go into cwm, brace yourself, this process can get very repetitive to solve because a mere battery able to do such a problem. I had these experience before about 2 months ago before buying a new battery. Hope this link helps you understand a bit more of the battery
http://sarf2k4.blogspot.com/2013/04/galaxy-note-battery-gt-n7000.html
JB again
sarf2k4 said:
Flashing another rom again wont solve much of the problem, if you happens to have the phone stuck in around bootloop and able to go into cwm, brace yourself, this process can get very repetitive to solve because a mere battery able to do such a problem. I had these experience before about 2 months ago before buying a new battery. Hope this link helps you understand a bit more of the battery
[
Thanks mate will go thru it and see if the battery is the cause. Point to note was it did not happen when i was using ICS. It started immediately with the JB update
Click to expand...
Click to collapse

[Q] Battery drain, cant find the cause!!

Gentleman, currently im having a big issue with my S3 Mini.
Some weeks ago, the battery started draining in a really short lapse of time. We are talking of aprox. 12 hourse of low usage (one phonecall, no sms, little whatsapp mesagging, some web sufring). By checking Betterbatterystats, i can confirm that almost 11 hours, the phone screen is off (or maybe 10 hours and a half).
I dont know what to do, i turned on airplane mode, and the problem persits. Changed rom 3 times (4.1.2 to 4.4, to 4.1.2 again), wiped data, cache, system, internal memory, etc..
Betterbatterystats screenshots are ATTACHED TO THE POST!!, to see if you cand find a wakelock, alarm, or something that can be interfering the battery life. (btw, i ruled out that theory since i changed rom and wiped everything so many times, but maybe there is something attached indefinetlely to the phone, really dont know).
The battery itself is the only reason in my mind right now, but the phone is only 9 months old (as well as the battery of course).
One thing that calls my attention, is that the charging time takes 2 hours max, maybe 1 hour and a half. Can the battery be damaged with so little lifetime?
Appreciate your help!!!
davartens said:
Gentleman, currently im having a big issue with my S3 Mini.
Some weeks ago, the battery started draining in a really short lapse of time. We are talking of aprox. 12 hourse of low usage (one phonecall, no sms, little whatsapp mesagging, some web sufring). By checking Betterbatterystats, i can confirm that almost 11 hours, the phone screen is off (or maybe 10 hours and a half).
I dont know what to do, i turned on airplane mode, and the problem persits. Changed rom 3 times (4.1.2 to 4.4, to 4.1.2 again), wiped data, cache, system, internal memory, etc..
Betterbatterystats screenshots are ATTACHED TO THE POST!!, to see if you cand find a wakelock, alarm, or something that can be interfering the battery life. (btw, i ruled out that theory since i changed rom and wiped everything so many times, but maybe there is something attached indefinetlely to the phone, really dont know).
The battery itself is the only reason in my mind right now, but the phone is only 9 months old (as well as the battery of course).
One thing that calls my attention, is that the charging time takes 2 hours max, maybe 1 hour and a half. Can the battery be damaged with so little lifetime?
Appreciate your help!!!
Click to expand...
Click to collapse
i can most certainly say that it's the battery, but don't run out buying a new one, yet. Wait 'till someone else confirms it
i had the same problem half a year ago (mine was also 8-9 months old back then). The phone started rebooting and many weird stuff happened I changed the battery and everything was ok. Now it's acting up again and i might change battery again.
davartens said:
Gentleman, currently im having a big issue with my S3 Mini.
Some weeks ago, the battery started draining in a really short lapse of time. We are talking of aprox. 12 hourse of low usage (one phonecall, no sms, little whatsapp mesagging, some web sufring). By checking Betterbatterystats, i can confirm that almost 11 hours, the phone screen is off (or maybe 10 hours and a half).
I dont know what to do, i turned on airplane mode, and the problem persits. Changed rom 3 times (4.1.2 to 4.4, to 4.1.2 again), wiped data, cache, system, internal memory, etc..
Betterbatterystats screenshots are ATTACHED TO THE POST!!, to see if you cand find a wakelock, alarm, or something that can be interfering the battery life. (btw, i ruled out that theory since i changed rom and wiped everything so many times, but maybe there is something attached indefinetlely to the phone, really dont know).
The battery itself is the only reason in my mind right now, but the phone is only 9 months old (as well as the battery of course).
One thing that calls my attention, is that the charging time takes 2 hours max, maybe 1 hour and a half. Can the battery be damaged with so little lifetime?
Appreciate your help!!!
Click to expand...
Click to collapse
Turn off wifi and reboot that helps sometimes . On the first Screenshot was your wifi always on. On the last Screenshot was your Android OS on the first place. That was the 1GHz bug.
facebook updates
Don't have facebook app (only messenger), and without messenger app, the battery keeps draining.
I red on the internet that the 1ghz bug tends to appear on Cyanogenmod. Only had cyanogenmod 11 for some days, turned back again to the stock rom.
Could this bug affect my phone right now? How can i fix it?
If not, im really thinking of buying a new battery, but the risk of another problem affecting the battery usage from the phone keeps turning me back!
Thanks!!
davartens said:
Don't have facebook app (only messenger), and without messenger app, the battery keeps draining.
I red on the internet that the 1ghz bug tends to appear on Cyanogenmod. Only had cyanogenmod 11 for some days, turned back again to the stock rom.
Could this bug affect my phone right now? How can i fix it?
If not, im really thinking of buying a new battery, but the risk of another problem affecting the battery usage from the phone keeps turning me back!
Thanks!!
Click to expand...
Click to collapse
if you didn't do a full wipe before moving back to stock maybe it could cause an issue
Aronuser said:
if you didn't do a full wipe before moving back to stock maybe it could cause an issue
Click to expand...
Click to collapse
Wiped everything before installing the stock rom.
Look at the picture in the attachment.
The left one is broken (rounder and thicker)
Its only 10 months old.
davartens said:
Don't have facebook app (only messenger), and without messenger app, the battery keeps draining.
I red on the internet that the 1ghz bug tends to appear on Cyanogenmod. Only had cyanogenmod 11 for some days, turned back again to the stock rom.
Could this bug affect my phone right now? How can i fix it?
If not, im really thinking of buying a new battery, but the risk of another problem affecting the battery usage from the phone keeps turning me back!
Thanks!!
Click to expand...
Click to collapse
com.facebook.orca?
efaustino84 said:
com.facebook.orca?
Click to expand...
Click to collapse
That's related to Facebook messenger app (messenger), and the battery keeped draining, even before installing the app.
Aloha Joe said:
Look at the picture in the attachment.
The left one is broken (rounder and thicker)
Its only 10 months old.
Click to expand...
Click to collapse
The battery don't seems to be neither round or thicker, and it don't spins freely.
Have you tried 'telling' the battery how much capacity it has again? (Drain until it automatically shuts down due to flat battery, charge back to 100% while off, switch on, drain again, charge again and use as normal)
Many manufacturers recommend charging when you reach 15-20% during normal use.
Also, have a look at govenors/schedulers if you have a custom ROM installed. Maybe changing combo works better for you, or even changing combo and switching back.
Sent from my Nexus 7 using xda app-developers app
after i flashed a new rom, i always use this app to calibrate my battery chargement.
Aloha Joe said:
after i flashed a new rom, i always use this app to calibrate my battery chargement.
Click to expand...
Click to collapse
It will be better for you, if you read this thread http://forum.xda-developers.com/showthread.php?t=1460553 and don't use such apps
piskor said:
It will be better for you, if you read this thread http://forum.xda-developers.com/showthread.php?t=1460553 and don't use such apps
Click to expand...
Click to collapse
+1
@davartens
Why don't you post your logs from BBS on app thread http://forum.xda-developers.com/showthread.php?t=1179809 ?
There are people, which can help you faster, than here
I have an issue with battery life as well
.I'm thinking of getting a bigger capacity battery like 2000mah.Can this damage my device?
umaga2012 said:
I have an issue with battery life as well
.I'm thinking of getting a bigger capacity battery like 2000mah.Can this damage my device?
Click to expand...
Click to collapse
It won't harm your device. Would you mind sharing from where you're getting a 2000mah battery and if it's the same size as the 1500mah one from Samsung?
I'm currently on a 1700mah battery for the Galaxy Ace II
Sent from my GT-I8190 using XDA Premium 4 mobile app
koragg97 said:
It won't harm your device. Would you mind sharing from where you're getting a 2000mah battery and if it's the same size as the 1500mah one from Samsung?
I'm currently on a 1700mah battery for the Galaxy Ace II
Sent from my GT-I8190 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Im from Kenya but the battery is available on Ebay. I saw 2450 mah batteries that come with a case so I guess they are bigger. Battery is a huge issue for me. I only get 4hrs maximum on 3g on my current battery and is so fruatrating.How long does the Ace 2 battery last?
umaga2012 said:
Im from Kenya but the battery is available on Ebay. I saw 2450 mah batteries that come with a case so I guess they are bigger. Battery is a huge issue for me. I only get 4hrs maximum on 3g on my current battery and is so fruatrating.How long does the Ace 2 battery last?
Click to expand...
Click to collapse
About 10 hours with medium usage and 6 hours heavy usage.
Sent from my GT-I8190 using XDA Premium 4 mobile app

Z1 Battery Problems

Hi, I have a Sony Xperia Z1 running cm12 nightlies. I've been getting this problem where the phone shows 40% battery but turns off at this and on restart shows 1%
This was okay, however, recently it has started turning off at 70%
I don't really want to replace the battery, as my warrenty is voided (isn't it) and it's not the easiest thing to disassemble.
Thanks.
iamthatmattguy said:
Hi, I have a Sony Xperia Z1 running cm12 nightlies. I've been getting this problem where the phone shows 40% battery but turns off at this and on restart shows 1%
This was okay, however, recently it has started turning off at 70%
I don't really want to replace the battery, as my warrenty is voided (isn't it) and it's not the easiest thing to disassemble.
Thanks.
Click to expand...
Click to collapse
Can you try to calibrate your battery once?
100-0% and then 0-100% in one go
___
v7
XDA Assist
v7 said:
Can you try to calibrate your battery once?
100-0% and then 0-100% in one go
___
v7
XDA Assist
Click to expand...
Click to collapse
Yeah, I've already tried this, even did it for a couple of cycles and it didn't seem to have much of an effect.
iamthatmattguy said:
Yeah, I've already tried this, even did it for a couple of cycles and it didn't seem to have much of an effect.
Click to expand...
Click to collapse
This happens only on the current ROM?Did you try flashing stock?
___
v7
XDA Assist
v7 said:
This happens only on the current ROM?Did you try flashing stock?
___
v7
XDA Assist
Click to expand...
Click to collapse
Bit of a dumb question, but where could I get stock from?
iamthatmattguy said:
Bit of a dumb question, but where could I get stock from?
Click to expand...
Click to collapse
Use XperiFirm to download stock firmware for your device.You can use Flashtool to flash the stock fw.
___
v7
XDA Assist
v7 said:
Use XperiFirm to download stock firmware for your device.You can use Flashtool to flash the stock fw.
___
v7
XDA Assist
Click to expand...
Click to collapse
Thanks, could I not just simply flash it with the recovery?
iamthatmattguy said:
Thanks, could I not just simply flash it with the recovery?
Click to expand...
Click to collapse
Don't waste your time on flashing and calibrating. You have classic symptoms of a dying battery. Soon, the phone would shut down at 90%, because your battery capacity is 6-7 times less. Try to run a youtube video and your phone will die in less than 20 min.
If you read this and general threads, you would have found similar complains. You need to replace your battery.
optimumpro said:
Don't waste your time on flashing and calibrating. You have classic symptoms of a dying battery. Soon, the phone would shut down at 90%, because your battery capacity is 6-7 times less. Try to run a youtube video and your phone will die in less than 20 min.
If you read this and general threads, you would have found similar complains. You need to replace your battery.
Click to expand...
Click to collapse
Ugh yeah that's what a quick Google search told me as well
How easy would you say taking apart and replacing the battery in a Z1 is?
Edit: If it's the battery why does it suddenly cut off instead of quickly decreasing.
iamthatmattguy said:
Ugh yeah that's what a quick Google search told me as well
How easy would you say taking apart and replacing the battery in a Z1 is?
Edit: If it's the battery why does it suddenly cut off instead of quickly decreasing.
Click to expand...
Click to collapse
Because battery is measured by voltage and when voltage goes down to a certain level, kernel shuts down the phone. If your normal battery has 20 cells, yours has only 3 left and voltage goes down rapidly under load, because the other cells are dead. Even if the battery has 1 cell left, when it is charged, the phone will show 100%, while there is a real capacity to hold just a few percents.
Watch youtube videos on how to change the battery. You may or may not break the back pannel (I did). So, get a replacement back glass too.
[/COLOR]
optimumpro said:
Because battery is measured by voltage and when voltage goes down to a certain level, kernel shuts down the phone. If your normal battery has 20 cells, yours has only 3 left and voltage goes down rapidly under load, because the other cells are dead. Even if the battery has 1 cell left, when it is charged, the phone will show 100%, while there is a real capacity to hold just a few percents.
Watch youtube videos on how to change the battery. You may or may not break the back pannel (I did). So, get a replacement back glass too.
Click to expand...
Click to collapse
I had same issue with my z1 since last 4-5 weeks. Thinking that battery is dying I changed it yesterday with a brand new sony battery. Now even after changing my battery, the problem persists. Phone switches off suddenly with 45-60% charge left.
I am on PAC Roam running 5.1.1 . Prior to this I have tried MX rom, Ressurection remix and few other ROMs running 5.1.1 however the same problem wa there as well.
I think it is not only to do with battery but with something else. Please help
roushan84 said:
[/COLOR]
I had same issue with my z1 since last 4-5 weeks. Thinking that battery is dying I changed it yesterday with a brand new sony battery. Now even after changing my battery, the problem persists. Phone switches off suddenly with 45-60% charge left.
I am on PAC Roam running 5.1.1 . Prior to this I have tried MX rom, Ressurection remix and few other ROMs running 5.1.1 however the same problem wa there as well.
I think it is not only to do with battery but with something else. Please help
Click to expand...
Click to collapse
You probably have a random reboot issue (thanks to some recent dumb kernel/rom improvements), as opposed to switch off. Look for what your battery shows after reboot: if it is 1%, it is battery related and you got a bad replacement. If it is close to the value before reboot, it is your rom/kernel. There is no third option. And by the way, battery drain has nothing to do with bad battery. Most drains are caused by Gapps and social apps. Also, if you install a new rom or battery, you have to give it a few charging cycles.
optimumpro said:
You probably have a random reboot issue (thanks to some recent dumb kernel/rom improvements), as opposed to switch off. Look for what your battery shows after reboot: if it is 1%, it is battery related and you got a bad replacement. If it is close to the value before reboot, it is your rom/kernel. There is no third option. And by the way, battery drain has nothing to do with bad battery. Most drains are caused by Gapps and social apps. Also, if you install a new rom or battery, you have to give it a few charging cycles.
Click to expand...
Click to collapse
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
roushan84 said:
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
Click to expand...
Click to collapse
If your phone boots on its own after switching off, then it is not the battery issue. CM roms are becoming worse and worse for several reasons: too many devices; bad sources from google and incompetent software guys (both at CM and Google). I don't like apple and their products, but when one entity controls hardware and software, you will have fewer bugs. Google pays their engineers for introducing more and more ad related things into Android, as opposed to making Android a full blown operating system.
Go to stock and see how long your new battery lasts: if it dies after 20 min of youtube, you have a bad battery. Period. If it is not, then find a custom rom that does not have random reboots, which unfortunately there is only 2 or 3...
For any measurements to be valid, you need to give your battery at least one cycle on a current rom (from 100% to 15-16%).
P.S. You may have both issues. If you paid $10-12 for a new battery, then most likely, you have a Chinese fake that only looks like real Sony...
optimumpro said:
If your phone boots on its own after switching off, then it is not the battery issue. CM roms are becoming worse and worse for several reasons: too many devices; bad sources from google and incompetent software guys (both at CM and Google). I don't like apple and their products, but when one entity controls hardware and software, you will have fewer bugs. Google pays their engineers for introducing more and more ad related things into Android, as opposed to making Android a full blown operating system.
Go to stock and see how long your new battery lasts: if it dies after 20 min of youtube, you have a bad battery. Period. If it is not, then find a custom rom that does not have random reboots, which unfortunately there is only 2 or 3...
For any measurements to be valid, you need to give your battery at least one cycle on a current rom (from 100% to 15-16%).
P.S. You may have both issues. If you paid $10-12 for a new battery, then most likely, you have a Chinese fake that only looks like real Sony...
Click to expand...
Click to collapse
I bought it in Rs 1500 (approx $30) from authorized sony service centre which also gave me a warranty of 6 months. Worst case I can return it to them but just want to be sure before I try and do that.
My phone switched on once after going off and it was with same battery stat (last instance). there have been couple of times when I could turn my phone on but it showed only 1 or 2% battery.
roushan84 said:
I bought it in Rs 1500 (approx $30) from authorized sony service centre which also gave me a warranty of 6 months. Worst case I can return it to them but just want to be sure before I try and do that.
My phone switched on once after going off and it was with same battery stat (last instance). there have been couple of times when I could turn my phone on but it showed only 1 or 2% battery.
Click to expand...
Click to collapse
Just do what I recommended in the previous post: go to stock, fully charge and see how long the battery lasts on youtube: in 20 minutes, you should lose no more than 13-15% on a new battery, as opposed to go to zero. Some Z1 batteries have a problem: Mine died about 9 months ago. My old Xperia ION (which is a 2012 phone) battery is still going strong (lasts for at least 2 days on Jeallybean).
roushan84 said:
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
Click to expand...
Click to collapse
I just recharge it to 100% and ran YouTube for 35 mins and from 100 it went to 93%..!!
Only 7 battery loss for 30mins YouTube on 240p and full volume
I hope the issue was there for first few cycles. In case if still persists, will try and flash FTF tomorrow and see what happens:fingers-crossed:
roushan84 said:
I just recharge it to 100% and ran YouTube for 35 mins and from 100 it went to 93%..!!
Only 7 battery loss for 30mins YouTube on 240p and full volume
I hope the issue was there for first few cycles. In case if still persists, will try and flash FTF tomorrow and see what happens:fingers-crossed:
Click to expand...
Click to collapse
That means your battery is fine and you have random reboots related to the rom you use. Here are custom roms that have no reboots: slimrom; tesla, DU and Jaguar. The last 3 are mine. LOL. I am not promoting my roms, don't need to (just look at the number of downloads, especially Jaguar)... In case of Jaguar, you have to flash November 1 kernel on top of the latest release. It is in November that they introduced changes that cause reboots...
Haha..
I know you don't have to plug-in your roms. I guess I will hold it for a day to see how my phone behaves. Major battery drain is when I play Clash of Clans. I am on CoC to check endurance. If not, them will move to Jaguar with Nov kernel on top.
I have realized that it's somewhere in November since there random reboots and battery issues started
optimumpro said:
That means your battery is fine and you have random reboots related to the rom you use. Here are custom roms that have no reboots: slimrom; tesla, DU and Jaguar. The last 3 are mine. LOL. I am not promoting my roms, don't need to (just look at the number of downloads, especially Jaguar)... In case of Jaguar, you have to flash November 1 kernel on top of the latest release. It is in November that they introduced changes that cause reboots...
Click to expand...
Click to collapse
I flashed latest Jaguar with Nov 1 kernel and c6902 modem (Version 4). Have also flashed 5.1 gapps (Micro version) and restored all my apps. have created Zip from titanium backup.
Phone still went off from around 75% battery. when restarted again, it came back with 45% battery, just to die within 30 seconds :crying:

Battery Issues

Hello.
I'm having trouble with the newly replaced battery on my rooted Xperia Z1 (with android 5.1.1).
2 months ago i replaced the battery because the old one overheated. The new battery has been fine untill a few days ago when it told me all day that it had 50% left. I found that weird so I didn't charge it to let it run out of battery so I could charge it to 100% and recalibrate it.
After the phone suddenly blacked out the battery wouldn't charge any more, so I took it out and messured it's voltage to be around 2.5. So I jumpstarted the battery back to 3.5 V and was able to make it charge again. Even though the battery functions like "normal", it still says 50% all the time with few exceptions which does look to be the correct battery level. The power management app disappears from settings whenever the battery shows 50% and reappears when it shows the correct level.
The battery indicator shows the correct percentage when charging, but not otherwise.
My theory is that there is something wrong with the software regarding the battery management and that it let the battery use too much of it's voltage. I've seen people with similar problems (50% battery indicator and disappearing power management), but the only solution there was to replace the battery. It doesn't seem that likely because of the software being buggy and the battery is only 2 months old.
Here's some screenshots of the weird behavior:
imgur.com/SXSMdzi
imgur.com/OcYKHjA
(Couldn't include image because I am a new user)
As I were writing this, it began discharging while hooked up to a charger. Seems to be a bit unstable.
Would appreciate all and any help
Hello!
I also got similar issues. I've read and try anything to find what happened with my Z1.
First, in my experience, some says (on internet) it's Android problem called Sudden Battery Drain Syndrome. I've tried apps like repair battery etc. and calibrator to fix it. Still the same the battery drain badly.
Second, so I am continuing my investigation on internet. I read from xperia care etc and I found that android Lolipop (5.1.1) terribly sucks for Xperia Z1. Many Z1 users confirmed this. Not just the battery problem, there are bugs also, like touchscreen, screen flickering etc.
Third, after knowing this and read like 2 hours to find the solution, I found in this forum that it's better to downgrading the android version back to KitKat or JellyBean. So I installed JellyBean firmware. Just now finished. I hope it'll be good again. I'll inform you.
NB: Factory reset also won't work
Hello, nice to get some response on this thread.
FrankBubble said:
First, in my experience, some says (on internet) it's Android problem called Sudden Battery Drain Syndrome. I've tried apps like repair battery etc. and calibrator to fix it. Still the same the battery drain badly.
Click to expand...
Click to collapse
I tried battery repairs, calibrators and so on. Did not do anything for me. After reading up on Sudden Battery Drain Syndrome, I'm inclined to say that it doesn't seem all that similar to my problem.
FrankBubble said:
Second, so I am continuing my investigation on internet. I read from xperia care etc and I found that android Lolipop (5.1.1) terribly sucks for Xperia Z1. Many Z1 users confirmed this. Not just the battery problem, there are bugs also, like touchscreen, screen flickering etc.
Click to expand...
Click to collapse
That is interesting to know. I have experienced alot of those problems. I was thinking about upgrading to a custom unofficial Android 7 for xperia z1, hearing this might be the thing that makes me do it. It's always such a hassle to download apps and set up from a new install, so I've put it off for a while.
Some days after starting this thread, I ordered a new battery. The old one started to do the same thing. Seemed like I could jumpstart it again, but I don't see the point in doing that every other day.
The new battery has been working great for almost 3 weeks now. I still have the Lolipop problems you mentioned, but the phone works as it is supposed to. It acts up from time to time, but I suspect that being because I use Greenify and CPU tuner to make the battery last longer. I might be upgrading to Android 7 and if that fails, I might downgrade.
I'm hoping I was unlucky with the last battery because it lasted so short and that the problem was only related to the battery. I will post updates here if the new battery also suffers.

20% battery drain over night || FIXED || SEPTERMBER 13 2018

Somewhere earlier this year I started getting a 20% overnight battery drain. On a few nights it didn't drain, but its pretty consistent. I have tried everything listed on this forum..This drain is definitely not caused by any standard settings. I am really hoping somebody with insight into Oreo might have something new I could try. I know xda user Digisteve is going to showup and suggest more things, and that is also not going to work.
Things I've tried.
- using root to disable logd. (saw this as a process in BBS) Still drained.
- Disabling auto-sync of all accounts. Still drained.
- Turning on stamina mode at night. Still drained.
- Removed google play store, google play services framework, and all google aps - and replaced with alternative China app store. - Still drained. Not a play services problem.
- Turning off wifi, all wifi scanning, notifications of wifi networks etc. Still drained.
- Turning off mobile data and wifi - no connectivity at all. Still drained.
- Turned of location in all possible device settings,. Still drained.
- Rooted the device with Janjan method/kernal. Still drained.
- Flashed different regions. Including (Taiwan, my region, Malaysia, Germany, Swiss, HK). Still drained.
- Tried firmware verions , 179 , 205, 235, 270
- Deleting 3rd party apps. Still drained.
- Installing Gsam - checking for consuming apps. No apps listed as cause of the drain.
- Installed greenify. Tried as standard, non-rooted with adb permissions, and fully rooted. Still drained.
- Disabling various packages related to 'carrier services', qualcomm and rcs. Still drained.
- Debloated to the point that the phone had no google apps, no Xperia apps and removed tons of other apps, camera bloat, anon data, etc, all removed. Still drained.
- All built in apps replaced with a 3rd party app, including, sms, contacts, email, keyboard. Still drained.
- Installed Linage OS 15.1 Beta 5. Still drained.
- switched from 3G only to LTE only. both drained equally.. though I have worse single with LTE in my area.
I am hoping there is a better solution than throwing the phone away. Because I am pretty much at that point now. I have spent probably well over 120 hours trying to fix this, and I can't. Its at the point where I need to move on to a new device rather than waste more time.... but there are no small devices on the market now, and also no more classic xperia style devices on the market. Sony does not make the executive, classic 'Xperia' style I fell in love with anymore. I don't do round, heavy, huge phones. Very sad.
UPDATE - AUGUST 14
Now running the latest Customized German 270 firmware.
Still draining 20% per night. Check out the screen shots - clear to see I have almost no apps. No process can be seen as a battery hog in both Gsam and BBS. However Gsam screenshot shows evidence of CPU usage.
UPDATE - SEPTEMBER 13 - FOUND THE PROBLEM
Considering almost nobody had my issue, I assumed my phone must be a dud. Late August I bought a second XZ1 compact. The new phone worked for 1 day, and on the second day drained battery at 15% per night idle drain. Previously I had only tested the sim card by switching 3g,4g and disable mobile data, but never actually removing the sim from the phone. Last 2 nights I replaced my old sim with my gf sim of a different carrier. In the morning I had 99% battery remaining. No Drain!
I then downloaded an app these measures signal strength, and turns out where I sleep at night, there is is less reception. Its not noticeable just looking at the standard signal strength on your home screen, you need to check the more detailed strength in decibel millimps /dbm. I can still get good signal in most areas of my house, but the phone is having to use more power to keep the signal good. I can now reproduce the battery drain on demand. If I sleep with the phone near my bed, I get drain. But if I keep the phone in the living room, no drain. I found that connecting to wifi not a factor, since even if you use wifi for data, the phone was still holding open a connection the the cell tower.
This problem took me months, countless hours, and the expense of buying a completely new phone!!! Now I have 2 XZ1 compacts....arg.... but so happy its solved.
The important point is that if testing sim, good signal, or disabling mobile data, changing 3g 4g isn't enough. Your phone is using more power to maintain good signal.
Thank you to everyone who spend time trying to help me, digestive, proflyer, etc. Thank you guys.
At this point, I think it's highly likely you got yourself a lemon. Since you've already rooted the phone, warranty service is out of the question.
It boils down to two options:
1. Pay for a board replacement.
2. Try your luck with a brand new XZ1C. Buy it online so that you'll get the 7 days return perk (some online stores offer 10 days), keep it wrapped in its original packaging, handle with extreme care, and use it normally for a few days before your return window runs out. If you no longer get drains, congrats, and welcome to the club. If not, accept your fate, return it for a full refund, and give up on the XZ1C - understand that you weren't meant for each other and move on.
I had the same issue. Check this thread. Try that and report back.
https://forum.xda-developers.com/xp...ormal-battery-consumption-wifi-t3740495/page3
I know what you feel. I had this too, but mine went away and I only very rarely have this drain. But mine was always on Wifi. With Wifi off = no drain reported... never.
I investigated it for weeks without coming to a conclusion.
If you can, replace the phone with warranty. Worth a try. Right now in my opinion you have a hardware faulty device.
But i would say to wait for android 9. In my opinion it wont take ages to come. It will much likely come this year.
---------- Post added at 15:52 ---------- Previous post was at 15:45 ----------
Milly7 said:
I had the same issue. Check this thread. Try that and report back.
https://forum.xda-developers.com/xp...ormal-battery-consumption-wifi-t3740495/page3
Click to expand...
Click to collapse
He still has drain even with WIfi Off, so that not the problem.
The only other thing I could suggest is having the battery replaced at a local repair shop. If you got a lemon battery but an otherwise fine phone, that could help.
How about remove your SIM card with wifi on for over night? Do you still experience the drain?
[delete]
Dean F said:
UPDATE - AUGUST 11
ONE WORK AROUND. If I reboot the phone, then unlock it so "android is starting" screen is complete. Then lock the phone, without doing anything else - The battery does not drain overnight. In light of this, what could be the solution? I know an app sounds logical, but I arlready checking my 3rd party apps, and none of them were the probably, an no battery app has ever listed an app as a drain.
Any technical or Dev person go any idea what that symptom points towards?
Click to expand...
Click to collapse
This does indeed sound like an app or a service gets stuck in an awkward way. You indicated in your first post that you use better battery stats, do you mind posting screenshots of the top of the summary, kernel wakelocks and partial wakelocks page (showing keeping awake services) as well as the bottom of the cpu states page (showing deep sleep time) "since unplugged" after a few hours of drain?
I have attached corresponding screenshots here for my xz1c (after more than 24 hours unplugged) as a reference (I have play services enabled and syncing both gmail and contacts and so on, no root though).
Dean F said:
UPDATE - AUGUST 11
ONE WORK AROUND. If I reboot the phone, then unlock it so "android is starting" screen is complete. Then lock the phone, without doing anything else - The battery does not drain overnight. In light of this, what could be the solution? I know an app sounds logical, but I arlready checking my 3rd party apps, and none of them were the probably, an no battery app has ever listed an app as a drain.
Any technical or Dev person go any idea what that symptom points towards?
Click to expand...
Click to collapse
That doesnt make too much sense. Test it for at least one week before coming to conclusions.
Try this and let me know if it works
I had exactly the same issue
What i did (now magicaly works)
I did not have too many time so what I did was simple and I got a cheap replacement phone in the meantime
It seems to be beyond everything we tried
I conected the phone to the pc and did the fix with xperia companion, then I realized that everything was working as soon as I started to install the apps the problem came back, I installed a launcher (nova) and use it, drained the battery Ăștil reach zero and fully charge it, then everything was working... Back to normal... I don't know how the issue was solved but hope it works for you
Sorry about my bad english xD
ergoen said:
This does indeed sound like an app or a service gets stuck in an awkward way. You indicated in your first post that you use better battery stats, do you mind posting screenshots of the top of the summary, kernel wakelocks and partial wakelocks page (showing keeping awake services) as well as the bottom of the cpu states page (showing deep sleep time) "since unplugged" after a few hours of drain?
I have attached corresponding screenshots here for my xz1c (after more than 24 hours unplugged) as a reference (I have play services enabled and syncing both gmail and contacts and so on, no root though).
Click to expand...
Click to collapse
Hi ergoen - thanks for the interest in my problem. Please see all the screenshots attatched, including BBS and Gsam.
Dean F said:
Please see all the screenshots attatched,
Click to expand...
Click to collapse
The screenshots from BBS look pretty normal, the GSMBattery shots show issues with Google Play Services, so I'm guessing they were taken at different times. But there's nothing jumps out of the stats that looks out of the ordinary. Have you run the phone in safe mode overnight to see if you get the same drain? I think you may just have a duff battery, no one else has reported this sort of power loss before.
$40 down the repair shop to get a new battery is going to be a whole lot cheaper than a new phone.
Elmcor said:
I installed a launcher (nova) and use it,
Click to expand...
Click to collapse
I have read somewhere else that Sony's Home is very thirsty with power, I will give your suggestion a go
Didgesteve said:
The screenshots from BBS look pretty normal, the GSMBattery shots show issues with Google Play Services, so I'm guessing they were taken at different times. But there's nothing jumps out of the stats that looks out of the ordinary. Have you run the phone in safe mode overnight to see if you get the same drain? I think you may just have a duff battery, no one else has reported this sort of power loss before.
$40 down the repair shop to get a new battery is going to be a whole lot cheaper than a new phone.
I have read somewhere else that Sony's Home is very thirsty with power, I will give your suggestion a go
Click to expand...
Click to collapse
Thanks didgetsteve. your probably right.... The GSAM and BBS stats were taken right after each other, maybe a gap of 2 mins. Play Services wasnt the issue though, as I tried my phone google free, and it still drained.
Dean F said:
Thanks didgetsteve. your probably right.... The GSAM and BBS stats were taken right after each other, maybe a gap of 2 mins. Play Services wasnt the issue though, as I tried my phone google free, and it still drained.
Click to expand...
Click to collapse
I agree with didgesteve, nothing jumps out by just looking at bbs (I am not familiar with gsam, so I cannot comment so much on that).
Before replacing the battery, I would probably make sure that it is not radio/network related. I have noticed that my phone draws significantly different amount of battery (in deep sleep mode) depending on the mobile network. This is mostly independent on whether mobile data is on or off.
Could you turn on airplane mode for an hour or two and verify that it is not the radio chip that is causing your drain? (If that is the cause, I am not sure if you can do anything about it apart from switching carriers or experimenting with 2g/3g/4g settings, but it might be worth knowing)
ergoen said:
I agree with didgesteve, nothing jumps out by just looking at bbs (I am not familiar with gsam, so I cannot comment so much on that).
Before replacing the battery, I would probably make sure that it is not radio/network related. I have noticed that my phone draws significantly different amount of battery (in deep sleep mode) depending on the mobile network. This is mostly independent on whether mobile data is on or off.
Could you turn on airplane mode for an hour or two and verify that it is not the radio chip that is causing your drain? (If that is the cause, I am not sure if you can do anything about it apart from switching carriers or experimenting with 2g/3g/4g settings, but it might be worth knowing)
Click to expand...
Click to collapse
Didgesteve said:
The screenshots from BBS look pretty normal, the GSMBattery shots show issues with Google Play Services, so I'm guessing they were taken at different times. But there's nothing jumps out of the stats that looks out of the ordinary. Have you run the phone in safe mode overnight to see if you get the same drain? I think you may just have a duff battery, no one else has reported this sort of power loss before.
$40 down the repair shop to get a new battery is going to be a whole lot cheaper than a new phone.
I have read somewhere else that Sony's Home is very thirsty with power, I will give your suggestion a go
Click to expand...
Click to collapse
I also had the drain that Dean has. But mine wasnt so agressive, I mean, some days it was there draining 30% battery over my sleep time (8hrs) and sometime it just behaved normally draining max 3% over sleep time. But still from time to time the drain come back wich is annoying as I cant let my phone with 30% battery left when im going to sleep, afraid the battery will be dead and the alarm wont wacke me up lol.
On my extensive tests, the drain only happened with wifi, but even deactivating all wifi related process (backups, syncs etc) the drain was sometimes there. Wifi wasnt the culprit with Dean, but on my tests: Wifi On = Sometimes big drain , Wifi Off = never drain.
I never managed to find the culprit of this damn drain and Im a software tester. Gsam did not show anything unusual at all. It was like Deans screenshot.
We discussed about this issue a lot here (https://forum.xda-developers.com/xperia-xz1-compact/help/battery-life-bit-odd-t3688342/page8) but till this day we dont know whats triggering it.
Im curious how the phone will behave on this issue with android P.
@ergoen @Didgesteve . Can you guys comment on my 4th screen shot, the one where you can see the CPU usage. Does anything strike you as odd in that pic? TThe CPU util looks high... it is normal?
i dont see nothing odd there
Dean F said:
@ergoen @Didgesteve . Can you guys comment on my 4th screen shot, the one where you can see the CPU usage. Does anything strike you as odd in that pic? TThe CPU util looks high... it is normal?
Click to expand...
Click to collapse
I'm sorry, but I don't think I have the knowledge to judge that. I would expect CPU usage to be low in deep sleep mode, but since the CPU is mostly sleeping, I guess any requested usage will queue up in a way that might look odd, so what you are seeing might be normal (but again, I don't actually know). I also believe that CPU power consumption is mostly related to the frequency state it is in, so deep sleep should mean low consumption (independent on cpu util %).
As I indicated in my previous post, I would sooner blame the radio chip or the battery than the CPU given your BBS screenshots.
mi drain came back today... some days its there and some days its not...
what a fvcking piece of sh1t is this phone... im done with the all tests. time to try samsung.
profyler said:
mi drain came back today... some days its there and some days its not...
what a fvcking piece of sh1t is this phone... im done with the all tests. time to try samsung.
Click to expand...
Click to collapse
Bro, Samsung is even worse when it comes to battery drain. Check out linus tech tips vid from a few days ago https://www.youtube.com/watch?v=n46s_iF_IV4&t=324s
My wifes side of the family all have Samsungs.... they are totally ****. The OS is bloated, ugly, laggy despite monster specs huge ram, snap 845, and battery nightmares on brand new phones exactly like in Linus's video. And there is a stupid "BIXBY BUTTON" on the phone which is a total nightmare. if your with Samsung, BIXBY will the with you, following you forever.
In other news, I replaced my Taiwan XZ1 compact with an Australian XZ1 Compact, and my drain is gone. I drained 2% last night.
There are so many build differences with the Taiwan and Australian build of the phone. Bigger microphone holes, slightly different proximity sensor design, and the plastic back is a rough matt black/gray in the AU versions, the TW version was a smoother shiny midnight black with a silver sparkle in the sun. The biggest difference was of course the battery drain.

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