Redmi Note 9 Shutting off and going into bootloop - Redmi Note 9 Questions & Answers

Hello o/
My Redmi note 9 keeps turning off automatically when not charging and when I turn it on it shows the MIUI logo but then screen goes black after 2-3 seconds, the same keeps happening if I hold on to the power button or charge the phone, it'll buzz and show the logo and go black and repeat. I can't access the "Volume UP + Power button" mode but I can access the fastboot mode.
I don't know much about "fastboot" or "flashing" so help me out, a video I watched made me download the stock rom for redmi note 9 (from the official website) but I don't know what to do with it.
When I first had this issue I looked at a fix that involved tapping the phone, pressing it and cooling it in the freezer for 15 mins. I don't know if those methods helped but my phone started at a random attempt, after which I did a factory reset, I didn't get any issue but after a few days the same problem occurred again, I repeated the methods and managed to turn on the phone and did a reset again after which my phone worked for a few weeks but now the same problem has occurred again and I can't get to work. I gave up last night and now in the morning it turned on (had 94% battery) and placed it on charge, but after a while I removed it from charge and it went black in a few minutes.
At first I thought the issue is because of the battery but its always charged when the problem occurs so i'm not sure : /
Also there are two options to download, recovery and fastboot ROM... I downloaded the recovery one but idk if its the correct one

Yeah I have the exact same problem, I haven't found a solution yet. This appears to be happening to a lot of people

I found a solution. It's not a software issue, it's a hardware issue with the fuse on the battery. The solution is to open the phone back and apply some more solder on the fuse. I did it yesterday and it completely solved my problem. Following this video :

Related

[Q] Black screen after reboot

I have tried to boot into bootloader couple times before on stock settings, with nothing flash or modified.
Whenever I tried to restart, it stuck on the black screen with no LED when plugged in, and it won't turn on or boot for about 10-15 min.
I was trying to solve this issue by wiping the entire phone but still happening. Now that I have tried TWRP with ARHD 12.1, the problem still there.
I have also tried fastboot erase cache, doesn't fix this issue either.
Tried to hold Volumn down / Power button for a long time, it still doesn't do anything until 10-15 mins after.
I assume that the device is still in process and somehow is getting stuck somewhere that it doesn't listen to the input anymore until there is signal shutting the whole thing down.
Since I couldn't pull out battery on HTC One, there is no way I can verified if that is the case.
Anyone else facing the same issue?
I am kind of sick and tired of sending back and forth for RMA, which I already did for dead pixels before.
shansoft said:
I have tried to boot into bootloader couple times before on stock settings, with nothing flash or modified.
Whenever I tried to restart, it stuck on the black screen with no LED when plugged in, and it won't turn on or boot for about 10-15 min.
I was trying to solve this issue by wiping the entire phone but still happening. Now that I have tried TWRP with ARHD 12.1, the problem still there.
I have also tried fastboot erase cache, doesn't fix this issue either.
Tried to hold Volumn down / Power button for a long time, it still doesn't do anything until 10-15 mins after.
I assume that the device is still in process and somehow is getting stuck somewhere that it doesn't listen to the input anymore until there is signal shutting the whole thing down.
Since I couldn't pull out battery on HTC One, there is no way I can verified if that is the case.
Anyone else facing the same issue?
I am kind of sick and tired of sending back and forth for RMA, which I already did for dead pixels before.
Click to expand...
Click to collapse
try to hols power button and vol down under bright light....should help:good:
99piotrek said:
try to hols power button and vol down under bright light....should help:good:
Click to expand...
Click to collapse
Thanks for the help
I am under sunlight, thought that could have help, but it didn't....
I guess I will try flashlight next time..
but the problem still not solved, I do not want to get under the light every time when I am trying to make a restart on HTC One..
I found a pattern of this issue, it's seems to related to the USB connecting to a computer.
Somehow it won't let my phone shutdown properly and stuck with no screen showing.
Power button + volume won't work for about 10-15 min.
But it can boot back up after that 10-15 min normally. This is a strange issue.
It happened ever since I tried to access bootloader, but I have not change anything.

Phone in USB Host Mode, Refuses To Charge [Fix]

This just happened to me, and after some searching here and elsewhere I found that it seems to be an unsettlingly common issue. What was worse is the only solutions anyone had was RMA/replacement. Well, I called HTC customer service and the woman I spoke to was very helpful
She told me that the charging mode may need to be reset and gave the following instructions.
1. Turn phone OFF
2. Let charge for AT LEAST 10mins even if it doesn't look like it's charging (mine DID show the new charging animation)
3. Press and hold POWER + VOL UP + VOL DOWN for AT LEAST 2mins. Anything less will not reset the charge mode.
4. After 2mins release the buttons and the phone should boot as normal.
My phone is now charging normally.
Thx for share
Sent from my HTC 802w
Thanks for sharing, saved my device This info should be added to some sort of reference thread its very useful.
KiamatDusk said:
This just happened to me, and after some searching here and elsewhere I found that it seems to be an unsettlingly common issue. What was worse is the only solutions anyone had was RMA/replacement. Well, I called HTC customer service and the woman I spoke to was very helpful
She told me that the charging mode may need to be reset and gave the following instructions.
1. Turn phone OFF
2. Let charge for AT LEAST 10mins even if it doesn't look like it's charging (mine DID show the new charging animation)
3. Press and hold POWER + VOL UP + VOL DOWN for AT LEAST 2mins. Anything less will not reset the charge mode.
4. After 2mins release the buttons and the phone should boot as normal.
My phone is now charging normally.
Click to expand...
Click to collapse
Is it supposed to be showing that HTC startup screen and like cycling through the beginning of an attempted reboot while I'm holding in the 3 buttons, or have I done it wrong every time?
Some notification will appear on the screen?
I hold the 3 buttons, and htc one is restarting continuously. 2 minutes and 30 seconds
And it did not work, still only charging power off.
leandroch said:
Some notification will appear on the screen?
I hold the 3 buttons, and htc one is restarting continuously. 2 minutes and 30 seconds
And it did not work, still only charging power off.
Click to expand...
Click to collapse
Didn't work for me either.
I have to reboot to be able to charge with wall charger like it was before...
Thanks anyway:good:
I would put money down that the cause of this is those crappy usb ports my HD2 had exactly the same problem few years back and people realized it was the charging port getting rusted and shorting something in there causing the phone to act funny.
Time will tell...
leandroch said:
Some notification will appear on the screen?
I hold the 3 buttons, and htc one is restarting continuously. 2 minutes and 30 seconds
And it did not work, still only charging power off.
Click to expand...
Click to collapse
This was a while ago, but I don't recall mine power cycling; it stayed off the entire time.
leandroch said:
Some notification will appear on the screen?
I hold the 3 buttons, and htc one is restarting continuously. 2 minutes and 30 seconds
And it did not work, still only charging power off.
Click to expand...
Click to collapse
There were no notifications on the screen.
Help please
Hello mates, I have a question about my HTC One.
yesterday my home screen start to rotate like im on a website or something. i know this is not normal because i have for 6 months now and know that home screen canr rotate. It doesnt matter really if the rotate function is turned off or on.
And then it stops and everything is ok..and later on again.
I tried to reset my phone to factory and same thing after 20 min, but i noticed that happens after CAR app jumps out by itself without opening it.
And when i make a call i got speaker on automatically, like he thinks hes in a car mode. and i cant remove this app cause its custom built.
Also cant charge phone when in usb host mode appears often, then i reboot him and he charges.
I really dont know what can i do..anyone know something please help.
Thx in advance
Charging fix.
I was having the same problem with charging my HTC One. I contacted HTC and they told me to do the following which worked:
Step 1: Power off the device
Step 2: Press the Power button to initiate booting sequence and wait for the HTC logo to appear on the screen
Step 3: Press and hold the Volume Down button until entering OS
Step 4: You will notice that the device vibrates briefly during this process
Step 5: ‘Safe Mode’ wording will appear on the bottom left of the screen to confirm that device has entered safe mode.
After this safe mode start I restarted normally and no longer have issues charging the phone.
Cheers.
B.
strategyboy said:
I was having the same problem with charging my HTC One. I contacted HTC and they told me to do the following which worked:
Step 1: Power off the device
Step 2: Press the Power button to initiate booting sequence and wait for the HTC logo to appear on the screen
Step 3: Press and hold the Volume Down button until entering OS
Step 4: You will notice that the device vibrates briefly during this process
Step 5: ‘Safe Mode’ wording will appear on the bottom left of the screen to confirm that device has entered safe mode.
After this safe mode start I restarted normally and no longer have issues charging the phone.
Cheers.
B.
Click to expand...
Click to collapse
This info should be very useful! Many users are facing this issue. :fingers-crossed: tanks for sharing this
strategyboy said:
I was having the same problem with charging my HTC One. I contacted HTC and they told me to do the following which worked:
Step 1: Power off the device
Step 2: Press the Power button to initiate booting sequence and wait for the HTC logo to appear on the screen
Step 3: Press and hold the Volume Down button until entering OS
Step 4: You will notice that the device vibrates briefly during this process
Step 5: ‘Safe Mode’ wording will appear on the bottom left of the screen to confirm that device has entered safe mode.
After this safe mode start I restarted normally and no longer have issues charging the phone.
Cheers.
B.
Click to expand...
Click to collapse
This one didn't work either (for me )...
I got it into Safe Mode and in SF didn't charge and after reboot not only lost settings and stuff but still got the USB Host mode error.
I guess I'll be returning to stock soon and try to send it for repair before warranty expires.
Thanks anyway...
I have the same exact issue - phone will not charge and I get error about usb host mode... So far this "somewhat" worked for me - I am able to charge phone anytime via wall charger > but unable to connect to USB / charge via USB.
1. Start charging via phone wall charger. ( it will not charge at this time )
2. Reboot Phone (press power and hold > reboot)
3. After reboot your phone should be charging just fine, but ONLY via wall charger.
If you try to charge via USB it will not work. If you try to charge it via wall charger after USB charge attempt - it will also not work anymore, you will need to complete steps 1-3 again....
obviously this is NOT a solution and i think I'm gonna send the phone to repairs....
bonus: to get data off phone, you can do steps 1-3 then use file manager to drop off files to a network share! I use ES File Explorer. Get your data off before sending it to repairs because they will 100% wipe all your ****. Customer service is pretty bad, they do not care about you or your data.
I have been suffering this issue on and off for the last 12 months on my HTC one. Usb host mode, car mode popping up, airplane mode, screen going between landscape and normal on home page.
Out of the blue my phone started charging normally again the other day but stopped again a few days later. Noticed the day it stopped I was charging overnight and had the alarm set. So though I'll try that again so switched phone off after setting alarm and plugged it in to charge. Phone woke up to start alarm and it was charging while switched on again.
Tried all the other solutions without success, will now not set alarm to go off while phone is charging.
Hope this helps some people.
This is a manufacturing issue. I had to send the phone for repairs to HTC, they changed the motherboard, a logic board and a flex cable. Phone now works perfectly and came with Hboot 1.56.
My phone has not been charging correct for 2 days now. It only charges in boot loader mode using Samsung galaxy s4 charger. The HTC and Verizon chargers I have flicker charge in boot loader mode. I have tried everything I have read on here and on other sites with no luck. I am s-off and rooted with teamwin recovery but since I can't hook the phone up to a PC I can't s-on and unroot to try to see if I can do a warranty exchange via Verizon's extended warranty.
Only charging when off
KiamatDusk said:
This just happened to me, and after some searching here and elsewhere I found that it seems to be an unsettlingly common issue. What was worse is the only solutions anyone had was RMA/replacement. Well, I called HTC customer service and the woman I spoke to was very helpful
She told me that the charging mode may need to be reset and gave the following instructions.
1. Turn phone OFF
2. Let charge for AT LEAST 10mins even if it doesn't look like it's charging (mine DID show the new charging animation)
3. Press and hold POWER + VOL UP + VOL DOWN for AT LEAST 2mins. Anything less will not reset the charge mode.
4. After 2mins release the buttons and the phone should boot as normal.
My phone is now charging normally.
Click to expand...
Click to collapse
Tried doing this (and the other reboot, and safe mode, using different chargers,etc), to no avail... I am going to get the USB charge port fixed and see if that will do the trick. I'll update if it fixes it.
UPDATE: Phone died. Getting it checked out but through a regular place and not through HTC as that would take too long. I'll see what they determine to be the issue... Though it's not likely going to be a cheap fix...
UPDATE 2: Could not determine issue, and can't send into HTC as it is not under the 1 year warranty anymore. Tried contacting HTC Canada, still haven't got back to me. Phone is done as far as I'm concerned; I realize now that HTC uses the bulk of their precision work on the exterior and beauty is skin deep because this is pathetic if multiple people are having this issue. Got a Nexus 5 instead.
EDIT
Problem solved
I just started having this issue today.
~VZW~[viperROM] ~2.0~ |Sense 5.5| ★★FLY KERNEL★★ *OneMAX*
kalealex said:
Tried doing this (and the other reboot, and safe mode, using different chargers,etc), to no avail... I am going to get the USB charge port fixed and see if that will do the trick. I'll update if it fixes it.
UPDATE: Phone died. Getting it checked out but through a regular place and not through HTC as that would take too long. I'll see what they determine to be the issue... Though it's not likely going to be a cheap fix...
UPDATE 2: Could not determine issue, and can't send into HTC as it is not under the 1 year warranty anymore. Tried contacting HTC Canada, still haven't got back to me. Phone is done as far as I'm concerned; I realize now that HTC uses the bulk of their precision work on the exterior and beauty is skin deep because this is pathetic if multiple people are having this issue. Got a Nexus 5 instead.
Click to expand...
Click to collapse
Worked for me.
~VZW~[viperROM] ~2.0~ |Sense 5.5| ★★FLY KERNEL★★ *OneMAX*
Still Charges
I've been getting a notification with an explanation mark saying the phone will not charge and is in USB Host Mode. This message comes randomly. I haven't had an issue charging the phone but don't think I've tried while the message is up. I just close the message and it may come up a few hours later. Like I said, phone seems to work fine and has charged the few times since getting the phone 3 days ago.

Freezes, reboot and other funky things

Sorry for my bad English
Hello friends of the forum, I present my problem. I was given to repair a S3 LTE really is driving me crazy. We'll explain: the owner did filth with ROM to the point to make it unusable. Turns on, but after a while it stops and turns itself off. I tried to flash the stock, wipe system etc .. from recovery and put back the stock, but every time I turn on the phone and get to the Initial Setup (the one that says Samsung GALAXY which allows choosing the language) crashes and off. Also known that the recovery is very very slow (both TWRP that stock that cwm). I managed to flash rom 2 including Cyanogenmod but this crashes. Sometimes the poor cell can not even start that hangs on and off. I tried to replace the battery with one that I already had and the situation does not change. I wanted to try to do an update of the bootloader because I think the problem is the. Further inform you that when it crashes but is charging if I remove the battery on the phone stays on but completely locked and I can not even press the power button for 3 seconds, because it is completely freezed. Another observation I have noticed is that if I leave him in charge when switched off the led solid red, the screen shows no signs of life and if the detachment micro usb LED remains lit sign that is completely blocked even when it is charging (WHILE TURNED OFF!). I hope you can help. I tried everything
Maybe it's power button problem.Check the power On/Off .

Nasty weird Loop

Hello forum,
I try not to post on forum for help unless I run out of options. I used to encounter loops before and managed to fix them but this one is really weird. So a bit of background : I was running stock ROM + TWRP recovery and everything seemed normal till one day when I encountered my first loop after opening up newly installed app ( although I don't think it relevant to this case ). But anyway, when I opened it, phone restarted itself immediately and kept doing it (didn't get pass the logo) for around 5 minutes when finally booted into the OS. After that everything seemed fine for...about a month when the same loops started to happen more and more often. They usually happen when phone has it screen turned off and I press power button to wake it up, it then gives me 3 seconds as If I would hold the power button and volume down button prompting me that it's about to restart itself. So I thought, that there has to be some junk apps that are fighting with each other causing these loops and I went for the recovery. But (stupid me) instead of wiping only the apps I got rid of the whole ROM with recovery ( ). So this time I flashed a custom ROM (ViperOne+9.0.0-fix) using ADB (adb push etc etc) and TWRP thinking that maybe the previous ROM was the issue. (I forgot to mention that even when there was no OS on the phone it was still looping.) After a while when the loops stopped, I got into the recovery and flashed ViperOne with no problems at all. Phone booted itself into the OS, everything seemed normal to the point where I left it for couple of minutes, pressed power button and it went into to eternal loop where it only stopped when the battery was drained. It was literally loopin the whole night (couldn't sleep). Now when I connect it to charge it doesn't go into charging but goes straight into the loop. I can get as far as the bootloader and selecting to go to recovery and after I press power button to select it, it goes into the loop. NOW..this might sound like there is a hardware issue (the power button) but I highly doubt it. Ill appreciate any kind of solutions. :silly: Thanks in advance.
// edit v 1.0
If I didnt make any sense here's video :
https://youtu.be/DhVFApSE3kg

[HELP] Black screen randomly, have to hold power button to restart

Hi
So my phone has randomly started to die about once every other day. Screen goes black (i have always on screen) and no response from any of the buttons (power button, twice volume down button for camera). I have to hold the power button until it restarts/starts (don't know if it is dead or not). Anyone else has this issue? Only wierd apps that i havent hade before is blockada.
BR
Baddar
Troubleshoot it.
Delete the app and see if it still happens. If it does, flash a raw firmware and completely wipe your device. if it still continues, its a hardware issue and you should exchange the device.
baddar said:
Hi
So my phone has randomly started to die about once every other day. Screen goes black (i have always on screen) and no response from any of the buttons (power button, twice volume down button for camera). I have to hold the power button until it restarts/starts (don't know if it is dead or not). Anyone else has this issue? Only wierd apps that i havent hade before is blockada.
BR
Baddar
Click to expand...
Click to collapse
You're in custom or stock rom?
Im on stock with no modifications.
Phone auto shuts down
Did you find any solution same thing started to happen with me twice in 2 days
The way I fixed it... go to settings, Security & Lock Screen, click on the gear icon next to screen lock, then choose the first option Automatically lock, choose "Immediately" any thing other than that causes the screen to go black. I hope it works!
@Ahmed_x this didnt work for me.
So today i was about to miss my international flight because of this stupid phone deciding to die on me while on charging so no alarm went off.
Wtf is wrong with Asus? How could this have gotten worst with the new update. Are their developers ret**ded?
This phone is being returned unfortunately. Awesome phone but if u cant trust it to give a simple thing as alarm whats the point.
It happened to me twice in three months. The smartphone got stuck/freeze in standby mode: no response from the physical buttons or touch. I use the official android 9 rom.
I managed to restart it with the power button and volume up pressed for 15 seconds.
I hope that with android 10 this will never happen again.
Happened to me today, had to hold volume-down + power for about 10-15s to get it back.
very strange using latest firmware too (WW_Phone-17.0230.2004.60)
[HELP] My ROG Phone always turn off suddenly when charge
Please HELP My ROG Phone 2.
It's been more than a month if the charge will turn off unexpectedly. This situation is experienced until today. So that every time I charge, phone must be in the dead state. I've been very frustrated. Already doing factory data reset, only lasts for one week and back like that again.
Worse, in certain circumstances the handphone suddenly dead and hard to be turned on again. When charging the battery, sometimes the phone likes to not fill. I had to unplug and re-plug the charging cable to return it to normal. Its sucks. I bought this phone in a new condition with the official warranty on January. I already did update to Android 10 when available by the system. This issue occurs after the update.
I had thought the charger that I got from the factory was problematic, until I decided to buy a new charger with the original quality with 30watt power. But it turns out the same.
Same here my phone will turn off while charging. And it will keep rebooting. Sometimes my rog will not charge
My ASUS ROG2 is starting ti piss me iff noe.. Everything I play BR in CODM alwaiz black out..every single game black out. This is not good...Is this normal? Every game has to black out?...

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