Database Users

[Q] Stuck during bootup after turning on ART

Completely stock, not rooted or bootloaded.
After my KK OTA came in I wanted to try ART for a while. Enabled it and then went through the reboot. On the Android is Upgrading screen it would get to a certain app being optimized and then freeze. I'd reboot and it would cut down the number of apps that are getting optimized until it got to just 1 of 1.
Now it just stops there and freezes after 15 seconds or so of being optimized. It won't go past that, I've spent the entire day today giving it time to sit and then try again or just let it fester frozen for anywhere from a few minutes to a few hours.
Question is, what do I do in order to reset my device in a way to past it.

Well, I have no idea how it fixed itself, I went to do a hard reset, couldn't get it go into the documented recovery mode, and then it worked.
Frustration.

Help with troubleshooting - bootloop, calls restarting phone, wifi won't turn on

I've been having some problems with my Galaxy S5 recently after ~2 years and some change of owning it. I'm stock rooted on the original ANCG KitKat version.
The problem: If I power off my phone, it will cause it to go into a bootloop, not going past the first screen (Samsung Galaxy S5, powered by android). I haven't found a reliable way to fix it from the loop, but I usually just remove the battery, wait, and try again until somehow it just works and boots up. This is extremely problematic because sometimes my battery runs out and after charging I'll have to go through this game of chance again until my phone works.
The next problem also adds to this frustration as well. When I attempt to pick up a call, my phone will sometimes just not work and restart itself. This leads to lots of confusion and I can't call them back for some time because the phone is stuck in a bootloop.
In the few times that I do get my phone to actually boot up, everything works fine except sometimes my Wifi just doesn't work. It gets stuck on "turning on" where the notification drawer quick setting icon is dim green and never gets to the turned on full green state, eventually just turning itself off (no green color).
I haven't done a factory reset or any real troubleshooting yet, as I'm a bit worried I won't even be able to boot up the phone and I don't have the time yet to spend a full day fixing it. Any help would be appreciated, thanks!

The calling problem may be caused by the google dialer app not being set as the the default phone app but as for the other issues i have no idea a factory reset is a good start though

unfortunately I had the same problem but I have marshmallow but the factory reset helped with the not booting up and see a big difference with the battery

A5 2016 crashing and restarting all the time, completely unusable. what could it be?

hi guys. my girlfriend has this A5 2016, and it is a complete piece of ****. it restarts on it's on, be it updating, under heavy usage or just in standby mode. it restarts several times in a row, sometimes going into that "optimizing applications" green screen before completing boot. sometimes it stays in this green screen for hours before i give up and reset it. sometimes it works, sometimes it goes back to the green screen. my girlfriend lost appointments a couple of times before learning that she can't rely on this POS phone.
as you can see, there isn't a clear pattern. is there a log in the system where I could check for the cause of all these crashes?

If your girlfriend didn't make any modification to it, prehaps her phone is fake

Maybe something was installed that doesn't work and makes the phone crash in the background or maybe the phone was shutdown while doing an update from the firmware. (it's a maybe, i am just guessing)
If you have a micro sd card (memorycard) in the phone you can remove it and see if the problem is still there. If problem is solved you need to format that card or maybe even replace it with a new microsd card
Also you can reset it to factory settings to remove everything you changed in the phone (after factory reset don't restore your apps in google play without very good looking if the apps are working ok)
If that doesn't solve the problem you can install TWRP recovery and do a full wipe & after that flash the stock firmware with Odin. If that still doesn't solve the problem you need to bring it back to the store where you bought it

Galaxy Note 4 keeps freezing after 2mins usage, gets in bootloop

Hello, so i've had this Note 4 for about 2 years, i had no problems with it thus far until recently ( 3 hours ago actually) i was just texting and browsing Instagram and out of no where the screen froze, it became unresponsive and the screen went black and started constantly vibrating so i quickly pulled the battery out and put it back in again, tried to start it again and it got stuck on the Samsung logo, i went for recovery mode and tried to look up latest cashe log and it froze right there too and restarted, pulled battery out and in again, tried to get into Recovery mode for a second time and a dm-verity verification failed error on the lower left corner popped up, i selected "Restart phone" and it got stuck on the Samsung logo again, battery in-out, tried to get into Recovery mode for a third time to do a factory reset but this time it got stuck whilst trying to boot onto recovery, and i had to out-in battery again, tried several times to get into recovery and it didn't work, i just gave up and started searching, then after 14 minutes i decide to give it another try and it normally booted up! i inserted in my PIN and browsed the apps for about 2mins but it froze, again, and the whole cycle kept repeating i let it cool down for 15mins and it boots up normally but freezes again after a few minutes of usage, i noticed that it insanely overheats before freezing (especially right above the SIM card area) and the four CPU cores are showing 2469MHz and on 100% (But that's also the case when the phone just boots up right?), Now i basically can't access recovery mode and i'm stuck with a Freeze-Reboot looped and i'm left with no other option but a full Stock ROM flash, the thing is i can't even get into recovery to do a full wipe before flashing in the ROM, can i just flash in again a TWRP recovery? and is there any way to fix this without having to do a full Stock ROM flash (i Tried the wake lock app it didn't work) and i'm on Android 5.0.1, this has JUST happened today and never before. i'm hoping this isn't a hardware issue.
UPDATE: i have just noticed something rather interesting, the phone immediately freezes and goes nuts with the reboots and failed recovery modes instantly after i connect it to a wifi network, and exactly when it's attempting to "send report", a sending report sign shows up in the notification bar and it immediately screws up the phone until i do another Factory reset, i just did another one without connecting to a wifi network and i've already gone 40mins with it without any issues but perhaps it's just because it's not on heavy usage?

Sounds like you have the eMMC issue.
You can try and reflash with Odin. Get the right version from Sammobile.
Do yu get to download mode in any of the scenarios you describe?
Try WakeLock again and select the level to 4

Having the same issue
I'm having the same issue and don't have any idea how to help, just hoping someone out there knows...:crying:

Cybrid013 said:
I'm having the same issue and don't have any idea how to help, just hoping someone out there knows...:crying:
Click to expand...
Click to collapse
If you have the Snapdragon version - it's highly possible to have the emmc problem. Which is a bummer and the phone is like dead.
Unless you can buy another 910C motherboard and swap it.
Sorry.

What is short name for emmc?

jjoeshua said:
What is short name for emmc?
Click to expand...
Click to collapse
embedded multimedia controller

Just been having a very similar problem. I posted this elsewhere, but it may be helpful:
"My issue was that I needed to recover data, docs, photos, phone numbers etc. When boot looping the note 4 got very hot . In particular around and to the left of the camera (looking at the rear). Thinking it could possibly be the dreaded eMMC problem which also manifests itself by creating heat, I thought cooling the device might help. I placed the Note on a cooler box freezing block and voilà! No boot loop. I was able to remove all, but necessary apps and do a full copy to my PC. Storage was reduced from around 90% to 50% and memory 80% to 60%. It's now been stable for 12 hours, but the jury is still out. Next will be full reset with he latest available firmware 6.0.1 as mine was still on 5.1.1."
Also now downloaded a eMMC bug check that says my eMMC chip is 'sane'. Guess we'll see

Random boot loops on new Redmi Note 7 (Stock 10.3.5 MiUI non root)

Saturday night, I plug my 1 week old phone on the charger at 9%. I power off the phone and see the battery charging animation. I turned it back on as usual but this time my phone did something I've never seen before.
It started bootlooping!
I was like what the hell.
It loaded up to the lock screen and then rebooted. This happened over and over again for about an hour.
After googling, I found a thread about a Redni Note 5 pro having the same issue.
The solution was to hold power and Volume down until the phone rebooted to recovery.
After doing that, I was presented with the option to reboot to system, wipe phone (which I definitely didn't want) and connect to My Assistant.
I chose the first option and sure enough....my phone was stuck in a boot loop once again.
This is my first Xiaomi phone. It's not rooted at all and has locked bootloader on the stock 10.3.5 ROM. Fresh out the box...just a few apps, some photos and texts.
I've seen stuff like this before happen with rooted phones but never on a brand new non rooted phone.
Fortunately (and with lots of prayer), I was able to let the phone battery drain out completely since it wouldn't power off.
Sunday morning, I plugged it back on the charger and to my surprise, I saw the battery animation only this time!
After charging fully, I turned it on and saw it bootlooping again. After 5 mins, I decided to remove both my SIM tray with both SIM and micro SD.
THIS time, the phone stopped bootlooping entirely! Again....what the hell was my question ?.
Normally, my nerves are steel but yesterday, they were more like spaghetti lol
Against my own judgement, I wanted to test if it was my own SIM card causing the issue or if my micro SD card caused the issue.
I placed the SIM try back in with each card 1 by 1 however, the phone immediately started bootlooping on it's own right from system!
I've never seen this before with any other phone or brand I've used in the past.
This activity occurred again and again regardless which card was inserted. With no cards, the phone worked normally.
I decided, you know what, at this point, I'm going to back up my data during and factory reset since now I have access.
Thank God that worked!
After many hours of backing up data, factory resetting my phone and then restoring everything on Mother's Day ( which meant working around free time and planned activities with my Wife), I am happy to say my phone is back working normally with the same SIM card and Micro SD as if nothing happened.
Fluke or not, definitely going to be watching this phone carefully to see if the problem is gone for good.
I will say this, when I first took the phone out the box last week, I turned it on and watched it update to MiUI 10.3.5. Normally I factory reset my phones after updates to be safe but since the phone was still new, I did not factory reset this time. That could be the reason it did this...I'm still not sure.
Sometimes I power my phones off, connect the charger and turn them on. For years I've never had an issue or doing it this way. For a few days I didn't have an issue with my Redmi Note 7 either. After this experience, I will stop doing that entirely.
My question is, have any of you encountered random random boot loops with any of your Xiaomi products? How did it occur and how did you fix it?

Got the same problem, fixed it the same way
tiguy99 said:
Saturday night, I plug my 1 week old phone on the charger at 9%. I power off the phone and see the battery charging animation. I turned it back on as usual but this time my phone did something I've never seen before.
It started bootlooping!
I was like what the hell.
It loaded up to the lock screen and then rebooted. This happened over and over again for about an hour.
After googling, I found a thread about a Redni Note 5 pro having the same issue.
The solution was to hold power and Volume down until the phone rebooted to recovery.
After doing that, I was presented with the option to reboot to system, wipe phone (which I definitely didn't want) and connect to My Assistant.
I chose the first option and sure enough....my phone was stuck in a boot loop once again.
This is my first Xiaomi phone. It's not rooted at all and has locked bootloader on the stock 10.3.5 ROM. Fresh out the box...just a few apps, some photos and texts.
I've seen stuff like this before happen with rooted phones but never on a brand new non rooted phone.
Fortunately (and with lots of prayer), I was able to let the phone battery drain out completely since it wouldn't power off.
Sunday morning, I plugged it back on the charger and to my surprise, I saw the battery animation only this time!
After charging fully, I turned it on and saw it bootlooping again. After 5 mins, I decided to remove both my SIM tray with both SIM and micro SD.
THIS time, the phone stopped bootlooping entirely! Again....what the hell was my question .
Normally, my nerves are steel but yesterday, they were more like spaghetti lol
Against my own judgement, I wanted to test if it was my own SIM card causing the issue or if my micro SD card caused the issue.
I placed the SIM try back in with each card 1 by 1 however, the phone immediately started bootlooping on it's own right from system!
I've never seen this before with any other phone or brand I've used in the past.
This activity occurred again and again regardless which card was inserted. With no cards, the phone worked normally.
I decided, you know what, at this point, I'm going to back up my data during and factory reset since now I have access.
Thank God that worked!
After many hours of backing up data, factory resetting my phone and then restoring everything on Mother's Day ( which meant working around free time and planned activities with my Wife), I am happy to say my phone is back working normally with the same SIM card and Micro SD as if nothing happened.
Fluke or not, definitely going to be watching this phone carefully to see if the problem is gone for good.
I will say this, when I first took the phone out the box last week, I turned it on and watched it update to MiUI 10.3.5. Normally I factory reset my phones after updates to be safe but since the phone was still new, I did not factory reset this time. That could be the reason it did this...I'm still not sure.
Sometimes I power my phones off, connect the charger and turn them on. For years I've never had an issue or doing it this way. For a few days I didn't have an issue with my Redmi Note 7 either. After this experience, I will stop doing that entirely.
My question is, have any of you encountered random random boot loops with any of your Xiaomi products? How did it occur and how did you fix it?
Click to expand...
Click to collapse
Hello,
today I got the same issue as you stated above.
I tried to remove the SIM card (while the phone is on) and the phone brought me to the startscreen instantly. Inserting the SIM card caused the bootloop again ..
I googled this issue and found this thread,
went into the Recovery mode (Power + Volume Up) and did the Data Wipe.
Consequently, I could start the phone with my SIM card without problems ..
Later I found out, that removing the "Telephone"-permission from the "Contacts and dialer" app caused the bootloop.
(On my Stock 10.3.4 MiUI non root)
Greeting,
Dorian Rec

Dorian Rec said:
Hello,
today I got the same issue as you stated above.
I tried to remove the SIM card (while the phone is on) and the phone brought me to the startscreen instantly. Inserting the SIM card caused the bootloop again ..
I googled this issue and found this thread,
went into the Recovery mode (Power + Volume Up) and did the Data Wipe.
Consequently, I could start the phone with my SIM card without problems ..
Later I found out, that removing the "Telephone"-permission from the "Contacts and dialer" app caused the bootloop.
(On my Stock 10.3.4 MiUI non root)
Greeting,
Dorian Rec
Click to expand...
Click to collapse
Adding all permissions in contacts& dialer is the solution - you saved my day!

man ... it saved my life thanks a lot. it 100% worked.

That is awesome!
Glad I could help out.
Talk about scary situation....caused by a simple glitch in Miui 10.3.5.
Wonder if the fixed it with the updates...
To scared to update right now since everything has been running smoothly since on my 10.3.5 phone.
Can anyone else share of this problem still occurs on newer versions?
Dorian Rec said:
Hello,
today I got the same issue as you stated above.
I tried to remove the SIM card (while the phone is on) and the phone brought me to the startscreen instantly. Inserting the SIM card caused the bootloop again ..
I googled this issue and found this thread,
went into the Recovery mode (Power + Volume Up) and did the Data Wipe.
Consequently, I could start the phone with my SIM card without problems ..
Later I found out, that removing the "Telephone"-permission from the "Contacts and dialer" app caused the bootloop.
(On my Stock 10.3.4 MiUI non root)
Greeting,
Dorian Rec
Click to expand...
Click to collapse

tiguy99 said:
That is awesome!
Glad I could help out.
Talk about scary situation....caused by a simple glitch in Miui 10.3.5.
Wonder if the fixed it with the updates...
To scared to update right now since everything has been running smoothly since on my 10.3.5 phone.
Can anyone else share of this problem still occurs on newer versions?
Click to expand...
Click to collapse
10.3.6 PFGEUXM here - no glitch so far

Hi mine went on a bootloop but I have removed my sim and SD card and it continues to be on bootloop. Since I have a lot of data I can't do wipe data. Can you guys help me

Hello,
I am having the same issue of boot looping on my Redmi note 7 PRO. I also want to enter boot menu so atleast I can do anything, but doing force shut down (Volume down+power) I came across "FASTBOOT" mode. To get out of that I pressed and hold the power button for a while and it went again in a boop loop. Can you guys please help, I am still not able to turn it on.
Greeting,
Akash Parmar.

Akashparmar1999 said:
Hello,
I am having the same issue of boot looping on my Redmi note 7 PRO. I also want to enter boot menu so atleast I can do anything, but doing force shut down (Volume down+power) I came across "FASTBOOT" mode. To get out of that I pressed and hold the power button for a while and it went again in a boop loop. Can you guys please help, I am still not able to turn it on.
Greeting,
Akash Parmar.
Click to expand...
Click to collapse
most probably removing the "Telephone"-permission from the "Contacts and dialer" app is causing the bootloop - remove SIM and data card, start phone, fix the settings issue the get back the SIM

bootloop on my global version of redmi note 7
BThis last monday after all day work. I sat down and watch on youtube and after a few minutes my phone suddenly went black and when i turn it on it gets stuck on the logo redmi by Xiaomi then turns off.up until now i cant Open my phone. Pls help me resolve this matter. Thanks

[email protected] said:
BThis last monday after all day work. I sat down and watch on youtube and after a few minutes my phone suddenly went black and when i turn it on it gets stuck on the logo redmi by Xiaomi then turns off.up until now i cant Open my phone. Pls help me resolve this matter. Thanks
Click to expand...
Click to collapse
did you take off the card memory and sim?

Hi,
I am also facing the same problem since yesterday ecening, when I turn restarted my phone it gets stuck on the logo redmi by Xiaomi then turns off.up until now i cant Open my phone.
Also, I am unable to enter the fastboot or fatory reset menu as the fastboot menu ony flashes for a second and it again goes into the infinite loop.
Pls help me resolve this matter, any poiner would be appreciated. Thanks

hbhasin said:
Hi,
I am also facing the same problem since yesterday ecening, when I turn restarted my phone it gets stuck on the logo redmi by Xiaomi then turns off.up until now i cant Open my phone.
Also, I am unable to enter the fastboot or fatory reset menu as the fastboot menu ony flashes for a second and it again goes into the infinite loop.
Pls help me resolve this matter, any poiner would be appreciated. Thanks
Click to expand...
Click to collapse
How you solved this issue?

It's MIUI 11.0.1 still the same problem
Ok I updated my phone to MIUI 11.0.1 it still has the same problem but thanks to everyone in this thread I
finally fixed this problem that kinda scared the crap out of me.
Thanks Everyone

I did not know this was a thing until last night. I'm on MIUI 11.0.9
My phone restarted out of nowhere and then my flash light came on by itself, gps was turning on by itself and the reboot/switch off screen kept coming and going, little while later it went into the loop. wouldn't even get to the android screen, i couldn't go into recovery mode either it was so bad. I let it die last night and after seeing this thread i plugged it in, and took out the sim (no memory card). So it seemed to work, though the torch and reboot/switch off screen did show up but nothing like yesterday where it kept interrupting me while i was trying to backup my data. Luckily i do a manual back up regularly.
I changed the "Telephone" permission and it went into the bootloop immediately. It turned on, and i started to backup the last of my data and it went into bootloop again. It's been 10 minutes now.
I noticed it seemed to go into bootloop every time i turned off gps,cell data, or was clearing files from my phone. Honestly i thought i was being hacked. Any suggestions on what I can do?

Srushti97 said:
I did not know this was a thing until last night. I'm on MIUI 11.0.9
My phone restarted out of nowhere and then my flash light came on by itself, gps was turning on by itself and the reboot/switch off screen kept coming and going, little while later it went into the loop. wouldn't even get to the android screen, i couldn't go into recovery mode either it was so bad. I let it die last night and after seeing this thread i plugged it in, and took out the sim (no memory card). So it seemed to work, though the torch and reboot/switch off screen did show up but nothing like yesterday where it kept interrupting me while i was trying to backup my data. Luckily i do a manual back up regularly.
I changed the "Telephone" permission and it went into the bootloop immediately. It turned on, and i started to backup the last of my data and it went into bootloop again. It's been 10 minutes now.
I noticed it seemed to go into bootloop every time i turned off gps,cell data, or was clearing files from my phone. Honestly i thought i was being hacked. Any suggestions on what I can do?
Click to expand...
Click to collapse
Try turning off the call logs premission in the contacts app

Srushti97 said:
I did not know this was a thing until last night. I'm on MIUI 11.0.9
My phone restarted out of nowhere and then my flash light came on by itself, gps was turning on by itself and the reboot/switch off screen kept coming and going, little while later it went into the loop. wouldn't even get to the android screen, i couldn't go into recovery mode either it was so bad. I let it die last night and after seeing this thread i plugged it in, and took out the sim (no memory card). So it seemed to work, though the torch and reboot/switch off screen did show up but nothing like yesterday where it kept interrupting me while i was trying to backup my data. Luckily i do a manual back up regularly.
I changed the "Telephone" permission and it went into the bootloop immediately. It turned on, and i started to backup the last of my data and it went into bootloop again. It's been 10 minutes now.
I noticed it seemed to go into bootloop every time i turned off gps,cell data, or was clearing files from my phone. Honestly i thought i was being hacked. Any suggestions on what I can do?
Click to expand...
Click to collapse
It looks like a hardware problem, if your phone gets into bootloop even there is no sim card - try to change to the other position for the sim card

same issue
gosh scared the xxxx out of me too! I was uninstalling updates uninstall to my redmi note 7 cause too little space and it went into reboot loop. removed sim and giving permission works. I wonder how to do it if removing sim didn't help me boot! how would j have been able to add back permission. what's worrying was I didn't remove any permissions , I only did uninstall updates to all xiaomi apps
---------- Post added at 01:58 AM ---------- Previous post was at 01:52 AM ----------
tiguy99 said:
Saturday night, I plug my 1 week old phone on the charger at 9%. I power off the phone and see the battery charging animation. I turned it back on as usual but this time my phone did something I've never seen before.
It started bootlooping!
I was like what the hell.
It loaded up to the lock screen and then rebooted. This happened over and over again for about an hour.
After googling, I found a thread about a Redni Note 5 pro having the same issue.
The solution was to hold power and Volume down until the phone rebooted to recovery.
After doing that, I was presented with the option to reboot to system, wipe phone (which I definitely didn't want) and connect to My Assistant.
I chose the first option and sure enough....my phone was stuck in a boot loop once again.
This is my first Xiaomi phone. It's not rooted at all and has locked bootloader on the stock 10.3.5 ROM. Fresh out the box...just a few apps, some photos and texts.
I've seen stuff like this before happen with rooted phones but never on a brand new non rooted phone.
Fortunately (and with lots of prayer), I was able to let the phone battery drain out completely since it wouldn't power off.
Sunday morning, I plugged it back on the charger and to my surprise, I saw the battery animation only this time!
After charging fully, I turned it on and saw it bootlooping again. After 5 mins, I decided to remove both my SIM tray with both SIM and micro SD.
THIS time, the phone stopped bootlooping entirely! Again....what the hell was my question .
Normally, my nerves are steel but yesterday, they were more like spaghetti lol
Against my own judgement, I wanted to test if it was my own SIM card causing the issue or if my micro SD card caused the issue.
I placed the SIM try back in with each card 1 by 1 however, the phone immediately started bootlooping on it's own right from system!
I've never seen this before with any other phone or brand I've used in the past.
This activity occurred again and again regardless which card was inserted. With no cards, the phone worked normally.
I decided, you know what, at this point, I'm going to back up my data during and factory reset since now I have access.
Thank God that worked!
After many hours of backing up data, factory resetting my phone and then restoring everything on Mother's Day ( which meant working around free time and planned activities with my Wife), I am happy to say my phone is back working normally with the same SIM card and Micro SD as if nothing happened.
Fluke or not, definitely going to be watching this phone carefully to see if the problem is gone for good.
I will say this, when I first took the phone out the box last week, I turned it on and watched it update to MiUI 10.3.5. Normally I factory reset my phones after updates to be safe but since the phone was still new, I did not factory reset this time. That could be the reason it did this...I'm still not sure.
Sometimes I power my phones off, connect the charger and turn them on. For years I've never had an issue or doing it this way. For a few days I didn't have an issue with my Redmi Note 7 either. After this experience, I will stop doing that entirely.
My question is, have any of you encountered random random boot loops with any of your Xiaomi products? How did it occur and how did you fix it?
Click to expand...
Click to collapse
I cannot thank you enough!!

charles2020 said:
gosh scared the xxxx out of me too! I was uninstalling updates uninstall to my redmi note 7 cause too little space and it went into reboot loop. removed sim and giving permission works. I wonder how to do it if removing sim didn't help me boot! how would j have been able to add back permission. what's worrying was I didn't remove any permissions , I only did uninstall updates to all xiaomi apps
---------- Post added at 01:58 AM ---------- Previous post was at 01:52 AM ----------
I cannot thank you enough!!
Click to expand...
Click to collapse
Anytime!
Glad I can help

tiguy99 said:
That is awesome!
Glad I could help out.
Talk about scary situation....caused by a simple glitch in Miui 10.3.5.
Wonder if the fixed it with the updates...
To scared to update right now since everything has been running smoothly since on my 10.3.5 phone.
Can anyone else share of this problem still occurs on newer versions?
Click to expand...
Click to collapse
Seems like this problem exists on MIUI 12.5 too. I haven't tested the fix yet.