Question How to recover data on POCO M4 Pro 5G (No fastboot/bootloop working) - POCO M4 Pro 5G, Redmi Note 11S (Opal), 11T (India)

Hello,
My POCO M4 Pro 5G recently turned off by itself (at 35% battery), and won't turn on. I've tried to drain the battery and use the power + volume keys to fast boot/bootload it, but it doesn't work. It just keeps showing a photo of an empty battery symbol (attached pic). I connected to the PC but it doesn't detect the device. I'm a noob and I've never tried to flash or install custom ROM or anything. I'm really lost on how I can recover my phone data, is there anyone that can help?
I see some tutorials but it's confusing because some talk about the Xiaomi official flash tool (?) or Mediatek driver. Just wanted to get some clarification before I try anything bc I am probably misunderstanding the instructions and don't want to corrupt the phone data accidentally.

Just writing an update in case someone has this issue as well. The steps to resolve it was the same as the steps for Poco M3 with some small changes (which was why I mistakenly thought the steps were failing).
What worked for me was:
Completely drain the phone battery, it drains roughly 10% per day. To drain faster, put rubber bands that press on the power button. At this stage, my phone just shows this empty battery symbol and wouldn't boot up even after pressing the power + volume button.
Once the phone is completely dead, the screen won't turn on no matter what you press (so no battery symbol).
Put the phone to charge with the official charger. In a few minutes, you will see the empty battery symbol again. Leave it to charge more.
After around 30 minutes, the empty battery symbol becomes a battery symbol with a lightning bolt inside (no percentages). At this stage, my phone still wouldn't turn on even after pressing the power + volume button.
Leave the phone to charge for around 1-2 hours. My phone then booted up by itself without me pressing anything.
I still have my warranty so I will take it to the official repair center and will update you whether they say it is a hardware issue (e.g., defective motherboard issue like Poco M3) or a software issue (due to the latest MIUI update).

you CANT recover the stored data cuz is encripted in the memory, so even if you can extract it wont be redeable

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[Q] Galaxy Tab battery drains full to empty in 20 minutes

Yesterday morning I pulled the TAB from the net adapter. Immediately it beeped and turned off. Plugging it back in, the battery indicator went from 0 to 100% in 5 minutes.
Turning it back on, it died in 10-20 minutes.
Turned it back off again, fully loaded it again and played a movie on it, 50% back-light. It lasted for just 20 minutes.
I made a backup to SD, did a factory reset and charged the unit (powered off) to 100%.
Did a restore, and everything worked again.
Battery is still working at 80% after an evening of restoring apps and a night of stand-by.
What the heck happened?
perhaps one of your apps? try installing them a few at a time to see which app is causing it
info5i2002 said:
perhaps one of your apps? try installing them a few at a time to see which app is causing it
Click to expand...
Click to collapse
I also think it's a software problem, after the problem disappeared with the factory reset.
I'm going to check slowly which program is the culprit.
I just can't imagine that a program can stress the TAB so hard it realy drains the battery.
I think it could probably be a misguidance of the android OS from a wrong setting?
I had a similar problem but not nearly as bad as yours. I had my tab unplugged for a while and checked the batter: 30%. So that was fine so I opened up dolphin and INSTANTLY the screen went really dim and said I had less than 3% battery which I did not believe.
Turning the tab off and back on the battery was now at 27%. This only happened that one time and I havent seen it agian. Must be some weird battery level reading bug.....
I have the same situation and also make a backup and factory reset amd later a restore.
That was 2 months ago and until now it works like a charme.
Sent from my GT-P1000 using XDA App
Power off g tab drain the batt
I have my Galaxy Tab for about 3 days ago. Charge to 100% the battery, and then, I decide power off (totally) the Tab. Hold power button, and in the pop-up window, power off the phone!!
After a 1 hour, I saw the screen message with the android icon "POWER RESET or UPLOAD MODE"....and drain totally the battery!!!
What can I do???
See the attached image.......please help me!!
Only 2 things are likely to cause this, the battery being stuffed, or the battery stats database getting corrupted. You could try the "bump charge" method and see if it resets it. (Charge fully while on from AC, unplug, turn it off, charge for an hour or so from AC, unplug, turn it on, turn it off again once booted, charge for another hour or so, unplug, turn it on).
The battery stats can be wiped from the CWM recovery if you wanted to flash that, I'm not sure where the file lives to do it manually.
Dann said:
I have my Galaxy Tab for about 3 days ago. Charge to 100% the battery, and then, I decide power off (totally) the Tab. Hold power button, and in the pop-up window, power off the phone!!
After a 1 hour, I saw the screen message with the android icon "POWER RESET or UPLOAD MODE"....and drain totally the battery!!!
What can I do???
See the attached image.......please help me!!
Click to expand...
Click to collapse
Hi, just like to share my experience with you guys. I encountered the same problem as mentioned, especially the sudden request to shut down due to battery becoming 3%, although it has 50% left. I tried recharging a few times but the same thing happens, something, it will shut down at 30% battery power level. Then, one afternoon, while I was looking at my pictures (at Gallery), I saw duplication of my photos (3 times) that appeared on my gallery folder. But the key issue is I stored all these pictures (taken by camera or by transfer from PC) in the microSD card (8GB). I tried to do a deletion on the addition pictures (it showed 3, so I tried to delete 2). But to no avail, and the system keep processing even though I tried stopping it. After about 2 minutes, the promot came up, requesting me to do a shut down saying the battery level was low, although I have about 50% battery power left. So, I shut down the tab immediately and removed the microSD card. After that, I switched on the tab and it says 50% power left. But I have to make sure it is possible to utilize the tab until it drains out the battery. Finally, I managed to cross the 20% power level and the tab can still be used .
I was curious about my microSD card, thinking that it may be faulty. I used a pc to open up the content and I discovered the SD card has no problem at all, it didn't have duplication when viewed from the pc. For your information, I have installed "angry bird" onto the 8GB microSD card, I am not sure if it is causing any problem to the tab or draining power from it, because the download (from Goggle market) mentioned something about "preventing phone from sleeping - System tools". I am not sure how this is link to the duplication of the pictures in the gallery folder as well, but I am glad I have found the fault to the draining of the power by the tab.
I would suggest, before anyone proceed with the factory reset, do a check on your storage card or the apps that you have installed in your tab, try to solve the simple way and it can save us a lot of troubles .
I hope it helps............
Henry Lam
As knightnz mentions ~ It's the Battery Stats Database being corrupt.
To repair, simply:-
Connect the Tab to it's Charging Cable and ensure the Tab is switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
You will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.
This procedure can also be used for a Tab that refuses to switch on.
Should I do this when the tab is off? or when it is on?
I actually tried both, but I dont see "the battery indicator pop up" as mentioned.
Beards said:
As knightnz mentions ~ It's the Battery Stats Database being corrupt.
To repair, simply:-
Hold the Power On Button whilst at the same time touch and hold the screen.
Next you will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.
This procedure can also be used for a Tab that refuses to switch on.
Click to expand...
Click to collapse
shinji21 said:
Should I do this when the tab is off? or when it is on?
I actually tried both, but I dont see "the battery indicator pop up" as mentioned.
Click to expand...
Click to collapse
Actually, I missed out an important ingredient ~ The Power Cable.
You need to have the Tab connected to your charging cable as if you were charging the Tab and the Tab switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
Next you will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.
I'll amend my previous instructions to include the Power Cable.
Beards said:
Connect the Tab to it's Charging Cable and ensure the Tab is switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
You will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.
Click to expand...
Click to collapse
This is not working for me. The battery indicator pops up, but nothing else happens. The battery indicator even does not do any animations.
Beards said:
Actually, I missed out an important ingredient ~ The Power Cable.
You need to have the Tab connected to your charging cable as if you were charging the Tab and the Tab switched Off.
Next, hold the Power On Button whilst at the same time touch and hold the screen.
Next you will notice the battery indicator will pop up.
The Tablet will now reboot.
Everything should now return back to normal.
I'll amend my previous instructions to include the Power Cable.
Click to expand...
Click to collapse
Hi Beards,
Sorry to ask again, is there any way to verify that it has been solved without really draining the power to 0%? Is there any clear indication?
Thanks.
Henry
loonyt said:
This is not working for me. The battery indicator pops up, but nothing else happens. The battery indicator even does not do any animations.
Click to expand...
Click to collapse
henrylam said:
Hi Beards,
Sorry to ask again, is there any way to verify that it has been solved without really draining the power to 0%? Is there any clear indication?
Thanks.
Henry
Click to expand...
Click to collapse
The trick is in holding the screen whilst powering up.... It bypasses the normal start-up routines, resetting any errors that would sometimes require a Factory Reset to correct.
This info was passed on to me by a Samsung representative.
Easy fix, get a replacement, thts bad hardware, shouldn't have a problem exchanging, assuming it was purchased thru an auth retailer. No sense in messing with software and having a headache over it.
Seriously, the press screen thing doesn't work at all. Eventually, I brought it to the service center to do a firmware upgrade and it is back to normal...............
New upgrade:
Baseband version: P1000DXJM2
Kernel version: 2.6.32.9 [email protected]#1
Build number: FROYO.DXJM4
The funny thing is my wife has a unit that was using the same version as mine (old version, we bought them at the same authorised dealer), but she did not encounter such problem. I am just puzzled.
It did not work for me either. Is the charging cable supposed to be plugged in to the power socket or just the cable? (I tried both and neither worked)
I also did a firmware upgrade with Roto JMIv2. And I still see the problem.......Anyone having any suggestions please?
If your GALAXY Tab is running from fully charged to flat in under 20 minutes I wouldn't recommend anything other then... Sending it back to where you go it from?!
It doesnt go flat in 20mins. As a matter of fact, it lasts a couple days with my work load. Its just that when i put it in standby mode let say overnight at 80%, when i turn it on in the morning the battery will be at 50-60%. But when i restart it will go back up to 78-79%.
So im not losing battery capacity here i believe, but its annoying to have inaccurate reading, especially when i am on a trip or sth.
Sent from my GT-P1000 using XDA App
I can understand your predicament, I have those "moments" before. Mine just dies off and need reset to get the battery back. The unknown is always not welcomed to all since we paid so much for them.

Update bricked is there adb access with out booting?

The newest update bricked the device and i'm looking to get some files off the phone before using the sbf to restore. Is there a way to have ADB access if you are not able to successfully boot into the OS?
Hey, as an avid flasher (gosh i believe i did it over 15 times just this month =O), I noticed that even if you reflash everything on your phone, only your apps are erased as well as some data. If you're looking to back up stuff in the internal SD card, you should be fine as flashing won't touch that. As for if you're looking to grab some user data, I don't believe there's a way to do that, but I could totally be wrong. Sorry if that didn't help =\
if you reboot holding arrow down, it seems like I saw a USB enumeration option if you keep pressing down volume through the option. That may be a way to get the stuff off, depends what you want to do though.
I can also confirm SBF'n back to factory will retain SD info. I did it this morning to update to latest OTA.
Accidentally rooted and bricked ... but now the battery won't charge ... so RDS says battery is too low to flash ... any suggestions?
My only thought is to go to the ATT store and ask if they can swap batteries, but I don't see why they would.
If you plug it into the wall it should charge with the phone turned off. If the battery is completely dead- it will appear nothing is happening. Just leave it plugged in for a while, drink a beer, do something around the house, then come back. It should show a charging light at this point or have tried to turn itself on.
I will also 2nd that SBF flash will keep the files on /sdcard/ level intact.
Thanks for the quick reply...I feel silly asking, but how do you turn it off? As soon as I plug it in it turns on and gives the message "Failed to boot 2 / Starting RSD mode / Battery too low to flash." I press power, nothing happens. I hold down power, nothing happens. I hold Vol Down and press power, nothing happens. I charge overnight 12+ hours with the screen on, it gets warm, but otherwise nothing happens. I charge with the USB to the computer, the screen stays off, and it seems to get a little bit of charge (enough so that it doesn't shut off as soon as it's unplugged), but hours of trying to charge this way nets the same error message. She's bricked. I guess you can't flash without a battery in place?
Edit: Or just buy this spare battery desktop charger
My next best suggestion for you is to find a way to get 3.7 volts of power to those battery pins. Either with a regulated power supply or another lithium cell battery. I'm not sure whether or not the detection circuit will allow the phone to boot or not or if that is charge-related only, but it would be an alternative to keeping a bricked phone. If you choose to try to run this without a battery keep in mind wall wart type power is unstable (read: voltage changes) at different current draws.
Went to the store near closing time (10 min) and they gave me a fresh battery instead of going through warranty, said that could take days with no phone. Fortunately he didn't test the battery and, upon putting a new one in, he only looked at it long enough to see the dual core logo and not the Failed to Boot message.
Flashing worked perfectly after I had a fresh battery, thankfully. No longer bricked, no longer using 6-yo crackberry!

Samfail unlocked phone died and now will not power on, get "Unknow Error" in upload

Samfail unlocked phone died and now will not power on, get "Unknow Error" in upload
my battery died the other day and now the phone will not power on, will not respond to any of the standard button combos like download mode EXCEPT for upload mode, which when plugged in i can get to flash briefly before powering down again.
There's multiple posts on this in the Samfail thread, however everybody describes being STUCK in upload mode and many were able to get out via holding the download mode buttons for 5 minutes. I am, however, stuck with a dead phone and can only briefly get into upload mode and the download mode buttons dont do anything for me.
here's some posts on the issue:
https://forum.xda-developers.com/ga...nt/root-samfail-galaxy-note8-t3685340/page129
The thread has since been locked and i have no idea if other Samfail users have this same issue or not. Has anybody seen this or have any suggestions? My battery appears to be dead when its not plugged in and im guessing whatever is happening is blocking it from being charged.
Here's what I see when it flashes:
[ UPLOAD MODE ]
Unknow Error (yes the spelling is wrong =/)
DDR Vendor Samsung
SSOC_HW_revision : 2.1
Ram Dump by Hard Reset
Haqt_13 : 0x7
Generating Summary....
>>General Info
>>DDR Info
>>DCVS Info
Recovered from an exception
DONE
bump
FYI - I fixed it, since apparently nobody on here has any information about how to fix this, i'll post the fix for posterity:
The problem is basically that when the battery goes to zero, it needs low enough voltage to bring it back and both the wireless charger and the fast charging power adapter are too high. So here's what you need to do:
you have to use a low voltage charger to bring it back (I had an old iphone charger from back in the day laying around) and put it on the wireless charger at the same time, let it sit for a while (10 minutes to an hour maybe?), then press the power button once the wireless charger lights up (indicating that power has been restored to the battery), might take a while before its charged enoguh to turn on. Once it does switch to a fast charging power adapter.
Is this the first time you've let your battery die completely or is this just a new issue that arose? I'm just wondering because I remember I read something a few weeks ago about a bug that had been affecting people with rooted and unrooted phones alike where once the battery fully depleted they weren't able to get it turned back on. I believe someone wrote an app fixing the issue.. I'll go try to find a link.
Edit: wasn't able to find the page I was looking for but I did find another solution to your issue, stack charging .. basically just plug your phone in for 10 to 15 seconds and unplug it, wait for half a minute and repeat, apparently doing that between 20 to 100 times will give it just enough juice to boot. Seems like an annoying fix but I guess it's better then having to go out and find a low voltage charger.
The app you mention does not fix the problem, it is called ddp, deep discharge protection, it just warns you about the battery reaching a critical point, in case you are rooted, I think that it can power the phone off, but I am not sure of it

Mi5 won't start

Hi,
My Mi5 won't start now. It was having about 60% when I switched on NFC for the first time. I may have switched the NFC on and off a couple of time. Then I inserted the phone into its case , and by mistake the wrong way which might have pressed the power button / volume button , while I was inserting the phone into the case I noticed the phone was turning off. Quickly I realized the phone went the wrong way into the case and I removed and reinserted it and then pressed the power button, but nothing happened. Tried pressing volume up / down / power button but no use. But the phone was warm.
Now, the only sign of life in the phone is when charging it using the regular original charger. The light is initially purple and then turns to green but then it switches off. Tried connecting it to laptop but does not show anything. Also, the safe mode boot method does not work. So, the phone does charge but pressing power button does not turn it on but just makes it warm (some kind of startup loop)
I've been using the phone for last more than 2 years and it has original setup and updates are automatic and regular.
Just don't want to trash the phone if it can be revived.
Looking for advise.
Thanks

SM-T800 boot-loops and dies the moment you let go of the power button?

I've got an SM-T800 behaving very oddly, hope someone knows what's up!
If you attempt to boot it, it will flash up the Samsung logo, then die, and repeat in an endless boot-loop.
If you hold the power button down, oddly, it changes; instead it will proceed to the animated SAMSUNG logo which will then continue to pulse in and out indefinitely until you get bored and release the power button... at which point it instantly dies and then begins boot-looping again.
If you try to enter recovery by holding power + volume up + home, it will do so, but the moment you let go of the power button it dies.
Thinking it was down to the battery, I tried replacing it, and if anything the behaviour has been worse since!! It was at least possible previously to get the thing to sit in recovery without rebooting, but now it never does if you let go of the power button.
I've also tried reflashing the default firmware via ODIN; the one thing that always works is the download mode (power + volume down + home); I can reliably boot it into download mode and flash via ODIN, but then on reboot, it gets partway through the installation process (like a few seconds in) and then boot loops back to the samsung logo again.
Now it's difficult to get it to even charge; it will keep looping the charging symbol (battery with a lighting bolt on it) on and off the screen unless you fettle the buttons until it just sits at a black screen. I can see from the USB charger it is still drawing charge current.
Any ideas??!
It probably dead. Speaking as someone who had this issue for countless devices, I say that your battery probably can't hold enough charge anymore to completely power the device through.
It doesn't matter even if you charge it to 100%. The battery had degraded to a point where a minimal charge required to let the device pass the crazy power surge required during Android boot is just not meeting the minimum.
Hence it fizzles out. And rebooted.
I kept replacing my Galaxy S5 battery until few months ago, no battery I bought is enough to fully power it on anymore.
Thanks for the response; alas, I already tried replacing the battery; if anything it was worse! I suppose it is possible that the replacement battery was also a dud, though? Unfortunately it may be difficult to do a load test (a lot of batteries might not even provide power without specific conditions being met), perhaps I can probe the pins while it tries to boot and see if the voltage sags or something.
I have the same problem and I found this in Yoube; search for "Samsung galaxy tab s restarting issue" video from "Electronics repair school"
It shows bad contact on battery connector soldered side...
I have the same issue, I can hold down the power button and it will boot up completely. As soon as I let go, it reboots over and over again. So far I've replaced the:
USB Charger Port Connector Module Flex Cable
LCD Connector Flex Ribbon Cable
and the Battery
No change in boot up - The only option left , I think, would be to replace the main board. Any thoughts?
i got that issue too,
i did kind of a battery recalibration
meaning: i fully discharged my sm-t800 (took me some time doing reboots until the tab was totally dead)
then charged it to 100% without booting it
unplug it and reboot.
and well, now it works again
the clue here is:
the system stored wrong battery data over the time, so it randomly thinks the battery is at 0% and does an auto-shutdown. To repair this, you have to reset the system with recalibrating the battery, so the system deletes all old data and starts logging new data.
in my case this procedure worked out great
hope you guys will have the same success as i did
Hello everybody!
I thought I would let you know how I solved this issue WITHOUT having to do a full factory reset...
Or so I thought.
Turns out that it started shutting down and bootlooping after a while again.
Even after I ordered a replacement battery and charged that up. At first it looked like it would work and then it started shutting down randomly and bootlooping.
Probably will have to throw the thing out since it doesn't want to work. Makes no sense how its so uncooperative even after putting in a new good battery in the tablet but there's not nuch more that can be done.
If I just start it *sometimes* it will boot up and get to the android OS. Then work for a while before shutting down.
Sometimes it just bootloops at the Samsung Galaxy S logo over and over.
Holding the power button it does boot but if you release the button it MOST often just shuts off and bootloops.
Anyone know if there's anything to be done to fix this?
//Kindest regards XDAFan2015
xdafan2015 said:
Hello everybody!
I thought I would let you know how I solved this issue WITHOUT having to do a full factory reset...
Or so I thought.
Turns out that it started shutting down and bootlooping after a while again.
Even after I ordered a replacement battery and charged that up. At first it looked like it would work and then it started shutting down randomly and bootlooping.
Probably will have to throw the thing out since it doesn't want to work. Makes no sense how its so uncooperative even after putting in a new good battery in the tablet but there's not nuch more that can be done.
If I just start it *sometimes* it will boot up and get to the android OS. Then work for a while before shutting down.
Sometimes it just bootloops at the Samsung Galaxy S logo over and over.
Holding the power button it does boot but if you release the button it MOST often just shuts off and bootloops.
Anyone know if there's anything to be done to fix this?
//Kindest regards XDAFan2015
Click to expand...
Click to collapse
I have had the same experience with my T800. What I have been doing is to tape the power button down using scotch tape. The tablet can be waken up by pressing the home button. In my case, I need to remove the button to recharge the tablet.. So far so good.

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