Develop Bugs

Galaxy nexus keeps rebooting

I have a stock GN, not rooted yet. Today my phone automatically shut off and now it starts back up, google logo shows up and all those colors come on for couple of seconds and then the phone reboots itself.
I can press both volume up+volume down + power button and get into a menu which gives me the options of Start, Restart bootloader, recovery mode, and power off. I choose recovery mode but then it goes on to an android sign with exclamation mark. After that I can't seem to get anywhere. I have tried volume up +power, volume down+power, and volume up+down+power but nothing seems to work. It just keeps on rebooting it self.
Any solutions to this problem??

There are two possibilities:
1) Software problem. Since you were stock, this is unlikely.
2) Hardware problem. This is more likely, in my opinion.
If you want to eliminate 1) as a possibility, you can try this:
1. Download the GNex Toolkit here
2. Install it & get the drivers working on your computer (if you haven't already)
3. Unlock the bootloader by selecting Option 3 (it'll wipe your phone)
4. Flash factory stock rom by selecting option 8
5. Try it. If it works, congratulations. (if you want to re-lock your bootloader, use option 11)
If this doesn't work, relock your bootloader and send it in for warrantee. (most likely a hardware problem)

....

FredFS456 said:
There are two possibilities:
1) Software problem. Since you were stock, this is unlikely.
2) Hardware problem. This is more likely, in my opinion.
If you want to eliminate 1) as a possibility, you can try this:
1. Download the GNex Toolkit here
2. Install it & get the drivers working on your computer (if you haven't already)
3. Unlock the bootloader by selecting Option 3 (it'll wipe your phone)
4. Flash factory stock rom by selecting option 8
5. Try it. If it works, congratulations. (if you want to re-lock your bootloader, use option 11)
If this doesn't work, relock your bootloader and send it in for warrantee. (most likely a hardware problem)
Click to expand...
Click to collapse
So, I did the above method and after flashing the factory stock rom it won't start up anymore. It doesn't respond to anything at all. It seems I've bricked it
Is there any way to unrbick it now? I'm assuming I can't send it in for warranty either now if it's semi bricked. Unless it's been completely bricked which means there is still a chance of getting a replacement phone.

I have the same prob on rooted SGN
This morning I switched off the airplane mode to be available, system crashed and restarted. And then still the same again - booting / android logo / restart again.. /./. I am using Android Revolution HD 2.1.5, for last month with no problems.
I tried to boot into recovery, then wipe the cache and reflash rom and radio from sd, it is still the same. I can see all the files on my int. sd with no probs.
Please help.

I'm thinking it might be a hardware issue, but I'll wait for another member's opinion before confirming.

Solved!!!
That's what I thought - HW prob, but it seems that luck is on my side, I hope. It helped to get back on stock but with total deletion including int partition
Anyway thanks for support.

630263 said:
That's what I thought - HW prob, but it seems that luck is on my side, I hope. It helped to get back on stock but with total deletion including int partition
Anyway thanks for support.
Click to expand...
Click to collapse
Was your phone rooted or bootloader unlocked before the problem occurred?
Anyways I've sent in my phone for warranty, hopefully samsung will fix it.

So my phone company called me today and apparently Samsung told them that it's corrosion(?) problem. When I asked exactly what does that mean they said it's moisture damage or physical damage that probably caused it. But I'm confused how could my phone possibly get moisture damage inside an otter box. I know how delegate these devices are and I know how to take care of them.
Anyhow it'll be $90 to fix it. I had no other option so I asked them to go ahead with the repairs. So frustrated with Samsung to be honest. I never dropped my phone once, never had any water damage, phone was always inside the defender case. And I still have to pay them for fixing my phone even though it's not my fault.

That's quite worrying, I just started having boot loop problems today. I've had the phone since Feb 29th and not had a problem with it yet, but today it started boot looping. I went into recovery and did a factory reset, was alright for a couple of hours then it crashed, started bootlooping again. Running stock 4.0.2 unrooted, I'm wondering if flashing 4.0.4 might help.

I'm in the same boat.... unrooting stock 4.0.1 firmware - canadian version from Negri.
April 23rd my phone crashed and started boot looping. Google logo - reboot - Google logo - reboot
Factory reset worked. I installed less apps than I had before figuring perhaps an app was corrupting something.
Yesterday - it happened again. Phone crashed. Boot loop. Factory Reset worked. Installed even fewer apps.
We'll see what happens this time around. I am hoping it is just a software thing. Hoping 4.0.4 gets pushed soon too.....

I've been having the same issue, plus sometimes my home screen it would lock up and wouldn't let me do anything, so I did a battery pull and it would boot loop for a half hour.
After the 3rd time I just took it to my Verizon wireless store, and showed them the situation and they couldn't figure it out, so their sending me a replacement, which I'm not looking forward too, don't want a semi-used phone....
Via Galaxy Nexus [LTE]

Rebooting Issue Solved.
I was also a troubled Samsung Galaxy Nexus user and my phone kept restarting more than half a dozen times everyday. Most of the times when I switched between two or more applications, or when it was simply idle on my desk.
However, I found a solution (at least in my case). All I did was root my phone, install cwm recovery, and flash a custom rom after wiping cache and factory resetting the phone, It's been about 5 to 6 hours now since I flashed the custom rom and I haven't had a single reboot or hang since.
Others who face this problem, please give it a shot, who knows? You might save your Galaxy Nexus instead of sending it back to get a replacement or spend some money on it for repairs which aren't even required in the first place.

I also had this problem unrooted. I had to give it to Samsung for the warranty
Swyped on my Galaxy Nexus running AOKP with Trinity Kernel, overclocked to 1.4GHz

I got my nexus yesterday, almost immediately after first start it start to install JB from OTA.
I did buy 2000mAh samsung original battery and started straight with it. not even testing with 1750mAh bat.
after installing JB and needed softwares, it started to randomly reboot.
it rebooted even it was just in my pocket.
sometimes when I did do something, display freezed and after about 5sec it rebooted.
Now I did changed to original 1750mAh, and it havent boot at all couple hours, even I did play angrybirds space.
I wont dare to root it before I am very sure problem is with 2000mah battery.

2stardiver said:
I got my nexus yesterday, almost immediately after first start it start to install JB from OTA.
I did buy 2000mAh samsung original battery and started straight with it. not even testing with 1750mAh bat.
after installing JB and needed softwares, it started to randomly reboot.
it rebooted even it was just in my pocket.
sometimes when I did do something, display freezed and after about 5sec it rebooted.
Now I did changed to original 1750mAh, and it havent boot at all couple hours, even I did play angrybirds space.
I wont dare to root it before I am very sure problem is with 2000mah battery.
Click to expand...
Click to collapse
I could be wrong, but have you tried to clean the pin on the battery? Seems like battery and the phone isn't contracting too well
Swyped on my Galaxy Nexus running AOKP with Franco Kernel, overclocked to 1.4GHz

Little update, phone did continue rebooting with original 1750mAh battery also.
I did also reset with recovery mode, and after that it did also reboot one time.
like it uses all memory/cpu and when nothing to do reboot (like windows )
I also did flash stock rom with toolkit but no help.
I will test rooting phone and flash another rom, or is it useless ?

after using couple days, not yet rooted.
Phone works and wont reboot even in heavy stress. but sometimes it just reboots by own not a single program in task list.
might reboot right after previous reboot or take hours to reboot.
stupid phone

I have been done some research.
I did one more time reflash google stock with rootkit, and forgot lock phone, it was almost 3 hours by own in wifi, no reboots at all.
when I noticed that I forgot to lock it I rooted whole phone and installed paranoid android 2.13 with CWM.
Now Ive been using 2 hours without any reboot, installing software, setting things up and using apps.
I dont understand at all:silly:
edit: noup, yesterday evening one almost reboot, paranoid android did reset itself but didnt even reset uptime. so I didnt count that normal reboot.
but after wake up this morning, it did reboot once when I put in my pocket, another just lying on table, once activating bluetooth in my car.
going to send it back to seller.

I have a similar issue, although not quite the same. Last night my phone started boot looping - it managed to boot up to the lock screen, and I can use it for about a minute before it dies and then reboots. This continues again and again (I have to pull the battery to quit it).
I have stock JB on my GSM GN, but rooted with an unlocked bootloader / CWM. I restored my old CWM backup, and had the same issue. I also wiped the cache and the dalvik just to see if that helped, but I had the same issue. I then tried to do a factory reset in CWM, but after I did that the boot loop just got to the nexus logo and died, entering a new (slightly shorter) boot loop. I went back into recovery and reflashed my CWM backup, and that at least got me back to booting into android.
I can't understand what's going on - could it be a hardware issue if it will happily stay alive in recovery, but dies after 1-2mins of android?
Thanks for your help. If it is hardware then I hope I can reflash the stock recovery / bootloader and unroot through recovery... the phone doesn't stay on long enough to do it when it's booted into full android!

[Q] Galaxy Nexus won't boot up! Restarting after google logo!

Hello to all
I have Samsung Galaxy Nexus 4.2.1 stock and unlocked.
It worked perfectly to two years! From yesterday i have problem with it! My GN won't boot anymore, I can see just google and X (nexus) logo after that GN restart itself! This is repeated without stopping until I put out battery.
I have tried to clear cache, wipe data/factory reset in Recovery Mode but problem has continued!
I have unlocked bootloader and update to android 4.3 stock (non rooted) through ADB (google SDK), updated successfully but when phone has reboot problem has continued, GN restart non-stop!
In Fastboot mode/Recovery Mode phone it never restarted! I have left in this mode with hours to try if restarted but no It works without any problems in this mode! It restart only when phone boot up!
Can this problem to be hardware failure or not?!
Can anyone help me? What can i do to boot my GN again?
I hope in your your support

visar.r said:
Hello to all
I have Samsung Galaxy Nexus 4.2.1 stock and unlocked.
It worked perfectly to two years! From yesterday i have problem with it! My GN won't boot anymore, I can see just google and X (nexus) logo after that GN restart itself! This is repeated without stopping until I put out battery.
I have tried to clear cache, wipe data/factory reset in Recovery Mode but problem has continued!
I have unlocked bootloader and update to android 4.3 stock (non rooted) through ADB (google SDK), updated successfully but when phone has reboot problem has continued, GN restart non-stop!
In Fastboot mode/Recovery Mode phone it never restarted! I have left in this mode with hours to try if restarted but no It works without any problems in this mode! It restart only when phone boot up!
Can this problem to be hardware failure or not?!
Can anyone help me? What can i do to boot my GN again?
I hope in your your support
Click to expand...
Click to collapse
Don't panic, this problem is called bootloop and it's normal. Just download factory images from here and flash them by using this awesome guide by efrant!!
Also bookmark this link for future reference.
http://forum.xda-developers.com/showthread.php?t=1812959

started having the same problem yesterday after 6 months of stability on a custom 4.3 rom.
oem lock then unlock to format, nothing, tried various methods of flashing back to stock via ADB with mixed results, normally more boot looping with it occasionally booting into a rom for ~5 seconds. so SOMETHING is working.
I tried Efrant's method about an hour ago, but its been sitting at the google logo since, I'm at a lost, I'm no stranger to boot loops when installing borked roms but this is the strangest problem I have ever had with an android device.
should I just chock it up to hardware failure?

Mostly yours USERDATA partition is corrupted.
Use FASTBOOT to reflash the USERDATA IMG and it should do the trick.
Sent from my Galaxy Nexus using xda app-developers app

did a total stock reflash again, got to the setup screen before it rebooted after ~15 seconds, bootlooping again. flashed the userdata img with a few different ones.
I'm trying to read my logcat but when I run the ADB command in clockwork It finds nothing.

I've done all steps by this awesome guide by efrant! But same problem here
I've tried to install 4.2.2 stock, 4.3 stock, all comands works but in the end when i press fastboot reboot my nexus it's in bootloop again restart restart and restart
Any other solutions :crying::crying::crying:

I've waited about 30 minutes after restarting non-stop, my GN boot to system i saw home screen of android but after 5 sec restarted again :crying:

I'm getting into my system once every 10 or so reboots. managed to turn off wifi in case that was the problem but still boot looping. I'm inclined to think it might be hardware related as I started having trouble in the middle of a text after several months of rom stability.

Stuck on Google Screen - Restore Didn't Work

Good Morning All -
A few days ago, I dualbooted my N7 with Ubuntu. The installation went fine and the tablet was working with no issues over the last several days. Last night, I was using the tablet and set it down. I went to pick it up (roughly 5 minutes later) and the touch screen was unresponsive. I was at the lock screen but couldn't get it to unlock. I pushed the wrong key-combo first and the device took a screen shot.
I was able to reboot into fastboot and attempted to go to recovery. The device would just hang at the Google logo. I pushed a factory firmware update from my Ubuntu system and attempted to reset -- no joy. This morning, I used Nexus Root Toolkit from my Windows 8 machine to see if I could get it up. Root Tool kit worked fine, pushed the images over again and restarted but it continues to hang at the Google logo.
Looking for any other advice folks may have on getting the device to boot.
EDIT: I can get to the bootloader fine and the computer recognizes it.
Thanks!

Alright... I just attempted using NRT and flashing 4.4.2 instead of 4.4.3 to see if it would run through. No joy, again. Remains on the Google screen.

xbi0s said:
Alright... I just attempted using NRT and flashing 4.4.2 instead of 4.4.3 to see if it would run through. No joy, again. Remains on the Google screen.
Click to expand...
Click to collapse
Im having the same problem with an unlocked unit. I would bet if you tried to do a factory reset in the android recovery menu it would give you a huge error all having to do with cache.

antonio824 said:
Im having the same problem with an unlocked unit. I would bet if you tried to do a factory reset in the android recovery menu it would give you a huge error all having to do with cache.
Click to expand...
Click to collapse
I'm unable to get into the restore menu. Hangs at the Google logo when attempting to get there.

I've tried about any solution I could find... Bumping one last time before I torch the unit :\

Nothing can be done. Its something inside. If its the 2013 model, call and get it rma'd. Sorry man.
Sent from my LG-LS970 using XDA Premium HD app

Resurrecting this thread to keep a work log.
I made have made some progress but hitting another roadblock. I've been holed up at home due to an auto accident so I started tinkering with the N7 2013 again.
Using the Nexus Root Toolkit, I am able to launch "Boot Temporary - Custom Recovery" from the advanced options. The problem I now run into is TWRP's touchscreen will not work. I attempted to do volume up/down to see if I could select but it wouldn't. The software is not frozen as I can see the temperature changing.
Anyone have any thoughts or information on how to boot another custom recovery that uses button inputs? I appreciate any input.
Updates:
1. I was able to push TWRP via "fastboot flash recovery." It went to the Google Logo then loaded TeamWin screen. I started to see errors when the program launched. "Unable to mount..." multiple times then the device rebooted. Device stuck on the Google screen.
2. Shut the device down, booted back into Fastboot. Selected Recovery and it began loading again. This time, the app launched and worked. Touchscreen does not work but the CPU temp is fluctuating and minutes tick up.
Update 4:49PM Central:
1. I am able to install and boot into TWRP 2.8.0.1 through TWRP 2.7.1.1. Those versions load but of course touch screen does not work.
2. I have been unable to get CWM to load... It installs fine but I cannot boot into.
3. The factory recovery images also do not load.

[Q] Phone stuck in a degrading boot loop

I have been an XDA lurker for years and have never had a need to post since everyone on here is so great about solving issues as they emerge. Anyway I have searched high and low for any answers to my problem with no success. My phone was rooted running a kit kat rom (Dirty Unicorns) when this issue occurred. A couple days ago I sent a mms and noticed my data was off so I turned it on via the power menu and my phone rebooted. Now this is something I have encountered with certain custom roms so I thought nothing of it. The phone went through the reboot process but then it rebooted again after about 3 minutes of normal operation. Since then the time to reboot has gotten worse until now it wont go past the Samsung boot screen. I have tried nandroid restores, cache/data wipes, and finally pushing stock roms via ODIN. None of these change the reboot behavior. Finally, as if everything else wasn't enough, I can no longer flash roms via any custom recovery. This to was something that also degraded over time. At first I was able to flash .zip files for the first few hours but eventually that to would also send my phone into a bootloop. I am clueless what to try next. Any help would be greatly appreciated. Thanks.

Nexus 5X stuck at Google Screen. Won't boot stock recovery.

I was just using my phone like normal today opening up the transit app at the bus stop and it randomly froze and restarted. After that, it only shows the initial Google screen and just keeps bootlooping, but never even gets to the part where the OS is loading (with the google animation). It was just on stock 6.0.1, MTC20K I think. Was not rooted. Bootloader was/is unlocked. Secure boot was/is enabled. It won't even go into stock recovery (when I select recovery it immediately goes back to the Google screen and continues as if I had never selected recovery). I have tried manually flashing each piece of the latest factory 7.0.0 build (NRD90S), but even though fastboot says everything was successful, nothing seems to have changed. Any ideas on how to fix this?

Same thing just happened to me. I have no root or anything but it will not boot the OS. I hope there is a fix for the problem because I really want to use the phone.

Same thing just happened to me.
Click to expand...
Click to collapse
No recovery for you either?

What was the latest Build you had when it was working fine?

To get into the recovery plug the phone into your computer. Go into fastboot (vol down + power) and select the power off option. When it turns off or goes to the charging screen, hold volume up + power to boot to download mode. Once in download mode, turn the phone off by holding vol down + power, then go back into fastboot and you should be able to now access recovery mode. This is what I did, and then flashed back to 6.0.1 and it runs fine now. No Idea why going into download mode allows you to then access recovery and get one clean boot, but it does

Druas said:
I was just using my phone like normal today opening up the transit app at the bus stop and it randomly froze and restarted. After that, it only shows the initial Google screen and just keeps bootlooping, but never even gets to the part where the OS is loading (with the google animation). It was just on stock 6.0.1, MTC20K I think. Was not rooted. Bootloader was/is unlocked. Secure boot was/is enabled. It won't even go into stock recovery (when I select recovery it immediately goes back to the Google screen and continues as if I had never selected recovery). I have tried manually flashing each piece of the latest factory 7.0.0 build (NRD90S), but even though fastboot says everything was successful, nothing seems to have changed. Any ideas on how to fix this?
Click to expand...
Click to collapse
Had the same thing happen - Now typing to you from my warranty replacement. Only option.

blackpaw78 said:
To get into the recovery plug the phone into your computer. Go into fastboot (vol down + power) and select the power off option. When it turns off or goes to the charging screen, hold volume up + power to boot to download mode. Once in download mode, turn the phone off by holding vol down + power, then go back into fastboot and you should be able to now access recovery mode. This is what I did, and then flashed back to 6.0.1 and it runs fine now. No Idea why going into download mode allows you to then access recovery and get one clean boot, but it does
Click to expand...
Click to collapse
Surprisingly, this worked. I forgot about download mode being an option. I also am not sure why this worked.
Edit: The phone boots, but is still randomly rebooting rather often. Not sure why, as everything was wiped and it should have been a fresh install of everything.
Another Edit: Back to boot looping/not getting to the Android loading screen. I didn't do anything other than let it download my apps. Maybe it is a hardware problem after all because it did successfully boot into Android a couple times.

This seems to be a common problem which I have, too. Looks like a whole series of devices had these issues. Currently LG is unable to repair my device because auf missing spare parts they say. So after effortless 3 weeks they will send my unrepaired device back to me with a letter for my dealer to get back my money.
Nice quality and service, LG - NOT!

Janny82 said:
This seems to be a common problem which I have, too. Looks like a whole series of devices had these issues. Currently LG is unable to repair my device because auf missing spare parts they say. So after effortless 3 weeks they will send my unrepaired device back to me with a letter for my dealer to get back my money.
Nice quality and service, LG - NOT!
Click to expand...
Click to collapse
That is actually pretty good outcome. Pixel phone is coming out soon.

Just had this happen today. Streaming music over Bluetooth and using another app, then tried switching tracks in Google Play Music and the app froze. Phone was unresponsive with app on the screen, then screen went off and wouldn't power on.
I finally got it on by holding down power for 30 seconds, but kept boot-looping to Google boot screen. I was able to get into fastboot mode and wipe everything and install the factory image. Still doing the same thing!
Just got off phone with Google. Told the rep everything I had tried and she is working on a replacement order. Supposed to call me back after chatting with higher level support. I wish they would just send me a new Pixel phone, or the 6P at least!

Ive had the same issue, where I just couldnt get passed the Google screen, the only solution for me to get back on to my phone was to let it happen until the battery died. After i let the battery die i turned it back on normally and connected it to my charger, it hasnt turned off since but im sure it will sooner or later
Edit: Issue is still happening but the only way for me to turn it back on is because the battery dies

This just happened to my and my wifes phones...all within a week of each other. I sent my wife's in about a week and a half ago to LG for warranty service. I am hoping that they are able to fix it...it is still in the 'repair' phase. I am trying to decide whether or not I want to send my phone in (which just died yesterday) before or after LG figures out what is going on with my wifes. In both cases, the phones were running fine and just shut down by themselves. The battery was not dead. Each time, the phone will boot to the Google screen, but then immediate shut down. I can get in to recovery and do actions within there, so I do not believe it to be a battery issue. However, as soon as you attempt to boot the phone, it will die.

Were you guys using stock setups or custom ones?
Sent from my Nexus 5X using Tapatalk

Its a 'known' issue. Google has confirmed there is an issue. Only solution appears to be a warranty replacement.
https://productforums.google.com/forum/#!topic/nexus/r29mtzLFS0g;context-place=topicsearchin/nexus/nexus$205x$20bootloop
---------- Post added at 10:22 AM ---------- Previous post was at 10:21 AM ----------
Psychofrantics said:
Were you guys using stock setups or custom ones?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
on both phones, bone stock. Only difference was I was running the beta before getting the stock OTA and my wife's was full stock and received the stock OTA.

I'm having the exact same problem here. Running Android 6.0.1, rooted. Phone suddenly turned off and won't start past the "Google" screen, except for once when it booted fully then immediately shut down, and three times when it loaded the boot animation and shut down. Bootloader is unlocked and TWRP recovery is installed. I can access fastboot but not recovery. I've tried the suggestion of booting into download mode then recovery again, but that didn't work. I have NOT tried updating to Android 7 yet, so this isn't the same boot loop issue faced by some other users. I don't want to try flashing stock yet and lose my data because I have a ton of Tasker profiles and tasks that I haven't backed up in months and I don't want to risk losing them! Serves me right...
Any suggestions?

Same HERE !!!!

the samed for me, and still now i can't light it up

sagshar said:
I'm having the exact same problem here. Running Android 6.0.1, rooted. Phone suddenly turned off and won't start past the "Google" screen, except for once when it booted fully then immediately shut down, and three times when it loaded the boot animation and shut down. Bootloader is unlocked and TWRP recovery is installed. I can access fastboot but not recovery. I've tried the suggestion of booting into download mode then recovery again, but that didn't work. I have NOT tried updating to Android 7 yet, so this isn't the same boot loop issue faced by some other users. I don't want to try flashing stock yet and lose my data because I have a ton of Tasker profiles and tasks that I haven't backed up in months and I don't want to risk losing them! Serves me right...
Any suggestions?
Click to expand...
Click to collapse
In my opinion your EMMC probably died, but you can try reflashing factory images to see if it is some other problem.
I would only try LGUP as a last resort because it will set Allow OEM unlocking to false and lock your bootloader, making further experimentation difficult.
BTW IMO the Android 7 bootloop probably isn't related to Android 7. I think they are just saying hardware problem (EMMC failure) that happens to show up more frequently when you have large updates of OS.
The way Google worded it, it made it seem like Android 7 is killing some hardware because of some incompatibility with just some isolated hardware builds.
I would suggest you let it keep booting and flash some factory images and sometimes EMMC will come back briefly and boot. If it does, immediately backup as much as you can before doing anything else.

Same deal for me and they are sending a replacement. This is a MAJOR blackeye!

Is your phone under warranty then? I am having the same problem as everyone on here. I've tried everything. I bought the phone just over a year ago though, so am a little concerned Google will turn around and tell me it's not their problem... Even though this is clearly a fault!