Reboot problem - Nexus 4 Q&A, Help & Troubleshooting

Hello. I have a problem with my nexus 4 randomly rebooting. I press the power button to bring on the screen but instead get a reboot followed by the powering down screen. I then have to power on again to get back to normal. Anyone else had this problem? My phone is unlocked rooted stock.
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Are you uv'ed at all? That sounds like instability due to low voltage. I've had that happen before on wake.
Edit: I know you said "Stock" but I thought I'd ask.

No just stock settings. Logcat shows lots of errors that i dont understand including SPAN EXCLUSIVE EXCLUSIVE and Fatal Signal 13
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purpse said:
No just stock settings. Logcat shows lots of errors that i dont understand including SPAN EXCLUSIVE EXCLUSIVE and Fatal Signal 13
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many of those "errors" you see really arent errors. anyways, if you wantca log of a random reboot, you need to run a last_kmsg after you boot back up. itll show why you had a random reboot. if you rebooted manually after your bootup after the random reboot, then its too late. last_kmsg is produced by your phone when the device reboots on its own.

purpse said:
Hello. I have a problem with my nexus 4 randomly rebooting. I press the power button to bring on the screen but instead get a reboot followed by the powering down screen. I then have to power on again to get back to normal. Anyone else had this problem? My phone is unlocked rooted stock.
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Try re-install stock 4.2.2. Install toolkit in you PC, and downlaod STOCK 4.2.2, flash and report. . .http://forum.xda-
developers.com/showthread.php?t=2015469

Already reinstalled stock. I was using stock with franco and thought that was the problem. I used toolkit to go back to stock but still have the issues (but it was ok for a couple of days)
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MixaDJ said:
Try re-install stock 4.2.2. Install toolkit in you PC, and downlaod STOCK 4.2.2, flash and report. . .http://forum.xda-
developers.com/showthread.php?t=2015469
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Click to collapse
Did you just recommend he use a toolkit?
Get out.
Use the real method.
http://forum.xda-developers.com/showthread.php?t=2010312

estallings15 said:
Did you just recommend he use a toolkit?
Get out.
Use the real method.
http://forum.xda-developers.com/showthread.php?t=2010312
Click to expand...
Click to collapse
Ok, good method. Try Flash PA 3.60 good rom, install custom recovery, download zip and gapps, stock no good, no customizations, custom rom best.

Went back to stock everything using fastboot. Locked bootloader unrooted no apps installed and no stock apps updated and yet still getting reboots. Decided to take back to shop. It behaved itself in the shop but they were helpful and exchanged my unit. I now have a model with the tiny feet
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Related

[Q] Stuck in boot after flashing PA

I just flashed Paranoid Android on my N7 running 4.1.2, and it's stuck in the boot animation. I've been on this for about 10 minutes now. What should I do?
Go back to recovery, factory reset, wipe caches and reflash
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Try long pressing the power button to turn it off and try booting again. Sometimes it hangs on boot after flashing. Especially with certain kernels.
Wow, I'm in the same spot here after flashing PA. Can't get to recovery, PC isn't seeing it either. Been searching all day. Can anyone point us in the right direction? It will be much appreciated.
SpazticWonder said:
I just flashed Paranoid Android on my N7 running 4.1.2, and it's stuck in the boot animation. I've been on this for about 10 minutes now. What should I do?
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chivo559 said:
Wow, I'm in the same spot here after flashing PA. Can't get to recovery, PC isn't seeing it either. Been searching all day. Can anyone point us in the right direction? It will be much appreciated.
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Did you guys update the bootloader?
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Apocalypse487 said:
Did you guys update the bootloader?
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Nope! I'm slapping myself as with one hand as I type with the other. Is there any method of salvation? *Please note: I rely on toolkits most of the time. Any help is appreciated, as always.
***Got it! I forgot to carry the one!
chivo559 said:
Nope! I'm slapping myself as with one hand as I type with the other. Is there any method of salvation? *Please note: I rely on toolkits most of the time. Any help is appreciated, as always.
***Got it! I forgot to carry the one!
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So you fixed it? I updated the bootloader before updating PA to any newer versions. I haven't had bootloops. I followed the DROIDMODDERX video on YouTube when I was on 4.1.1. In the tool kit thread it tells you how to update.
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Reboot error related to paths?
I flashed my N7 a few weeks back (using goomanager) with 4.2 JB which worked fine. I then put on gapps and got an endless loop of error messages about trying to configure them. At this point I rebooted to recovery and put back on rooted stock 4.1.1.
I thought I would try PA again this week and the ROM flashes OK, but when I reboot the N7 "hangs" at the boot screen and goes no further. The same thing happens if I try SmoothROM. I can go back to rooted stock OK though.
I notice the paths have been updated as per 4.2 but otherwise things appear the same as before.
Any idea why PA now won't boot?
Thanks
mik

Updated SmoothROM and my Nexus 7 stopped working! Can't get back into recovery.

I have had my Nexus 7 with SmoothROM on it for a long time now, I use it here and there, but I noticed it acting kind of glitchy lately especially when using the keyboard. I got 2 notifications from GROUPER (i think thats the name of it...) saying I had an update to SmoothROM (v 4.2) and that google apps needed to be updated... I did the normal crap, wiped everything, flashed the new smoothrom, flashed on the google apps, but when I rebooted it just keeps popping up saying "Unfortunately, the process blah blah gapps has stopped", then when i press ok it says Unfortunately, Setup Wizard has stopped".... and when i press ok on that it just keeps popping back up... will NOT go away no matter what I try...
On top of this... I tried going to fastboot and putting it in recovery mode but then it just goes to the main boot screen that says Google with a lock at the bottom, and it is just stuck there...
So what would be the easiest course of action here? I can't get it into Recovery mode I don't think, although I forgot how to do it in the first place, I thought it had to do with sliding the lock somewhere at the boot screen but I have tried that and nothing seems to work...
ANY HELP WOULD BE GREATLY APPRECIATED!
Update: I managed to get into the settings and put USB Debugging on
so now it gets recognized by my computer and I can view and transfer files.... But I still can't get it into recovery mode so what should I do now lol?
Should I be looking for something like this " Google Nexus 7 Toolkit V3.2.0 " ?
Use wugs to restore to stock and start over
If you go back to smoothrom make sure you download it again might have been a bad download
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When you power on your nexus press volume down and up and power button together for a couple of seconds. Your screen will go off and then "Google" will come up. Continue pressing and you will be in the boot loader menu. Go to recovery and install the ROM you want. (Can you get there?) Or else try to install it from your PC with cmd. Let me know if the first way works.
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Same here, I dirty flashed it from stock instead of full wipe. Always do full wipe just in case.
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is the lock under the Google logo open or closed? if you installed a custom ROM, it should be open. if it is closed, the bootloader somehow got locked again.
however, i think the issue you are experiencing is related to gapps. you either have a bad download of gapps or flashed the wrong gapps (some roms require custom gapps). try the volume down+power thing to get to the bootloader, then go to recovery. if you can't, flash a recovery using fastboot or use one of those toolkits to flash a recovery. before you re-flash your ROM and gapps, i'd recommend verifying the MD5 sum, since that will tell you whether the downloaded file is good or not.
Sorry for the late reply guys but as it usually goes my ADHD got the best of me and before I came back to read this i ended up using that Google toolkit thing that I asked about and did what somebody said (option 9) to download and then install the stock ROM (but thank you!!) BUT in case anybody would like to know the lock was open and I could put it in fastboot but it wouldn't boot me into recovery. Hopefully anybody else updating smoothrom that ends up in my position will find this thread. I also suggest just downloaded the ROM and flashing it with the recovery that was my first time using that update ROM thing and it screwed up lol.
Again thanks a ton! Is there any new ROMs out there for the Nexus 7? Anything better than SmoothROM (or stock, lol)?
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Is there any new ROMs out there for the Nexus 7? Anything better than SmoothROM (or stock, lol)?
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Rasbeanjelly with Franco kernel. I think it's the best out there.. I got 5k on quadrant with no overclock anywhere. Games play with no lag, it's very good
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Maybe I'll try that... I'm gonna do quadrant right now I DLed it right after I got stock on but haven't tested it yet
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I have seen a huge difference also in the overall speed of the system, very responsive and fast every second you should try it out
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hard problem with nexus 4

i rooted my phone and put franco kernel on it soon after my phone kept turning on and off and wouldnt go past the google screen now when i try to flash stock back on i get a error durning the process its saying missing recovery.sig and boot.sig files .....i even tried to do it manually but the command prop on my compter says it doesnt reconize anything im typing.......does anybody know how i can reflash stock with ALL the files and zips i need? or a easier way to get my phone back to normal
Is switching on and off it self .
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GS150R said:
Is switching on and off it self .
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yes it was
Find efrants guide on returning back to stock via fastboot. It's floating around here somewhere, I think it might be a sticky.

4.3 problem.

I have a problem with my nexus 4. I noticed that my phone sometimes is getting slow and then I can't do anything, and after a few seconds there is a System FC window. Only reboot helps me.
I use official 4.3, no root, even bootloader is locked.
Any ideas what can I do?
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kissme99 said:
I have a problem with my nexus 4. I noticed that my phone sometimes is getting slow and then I can't do anything, and after a few seconds there is a System FC window. Only reboot helps me.
I use official 4.3, no root, even bootloader is locked.
Any ideas what can I do?
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Try a factory reset after backing up everything, that usually solves the problem. You should try it in recovery first, wipe everything. After that do a factory reset in Android. Should work like new. I had problems after installing 4.3 (FC, lags and playstore not working) the factory reset solved it.
Oh, I hope it'll help me.
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[Q] Just keeps showing the boot logo

So im trying to fix my cousin nexus 4 but i tried everything to get boot but it won't past the boot screen. I adb several roms to it but it stays the same. I did notice there was no files at all whatsoever. I gonna try to factory reset it with a toolkit soon but at the moment has anyone encounter this issue?
xXghostXx313 said:
So im trying to fix my cousin nexus 4 but i tried everything to get boot but it won't past the boot screen. I adb several roms to it but it stays the same. I did notice there was no files at all whatsoever. I gonna try to factory reset it with a toolkit soon but at the moment has anyone encounter this issue?
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Click to collapse
Have you tried flashing the stock factory image?
https://developers.google.com/android/nexus/images?hl=fr-FR#occam
A guide how to
Toolkits are a bunch of shortcuts with a chance something might go wrong. Don't use toolkits. Follow what mrhiab said. And remember to wipe/format each partition first.
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gravitysandwich said:
Toolkits are a bunch of shortcuts with a chance something might go wrong. Don't use toolkits. Follow what mrhiab said. And remember to wipe/format each partition first.
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Yeah I know toolkits are bad but it probably would of been my last choice and I gonna try to flash the stock image later to see if that will do.
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