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Nexus 5 random reboot

My nexus 5 reboots on average every 15 minutes during use.
It runs android 4.4.2 stock not rooted. It freeze for 5 seconds and then it reboot.
I tried do the factory data reset, but it still randomly reboots.
I got some last_kmsg files and there are 3 different "last boot reason":
- kernel_panic View attachment kmsg.txt
- wdog_reset View attachment kmsg2.txt
- wdog_bite View attachment kmsg5.txt
Please help me, what should I do?
Thanks

francesco9696 said:
My nexus 5 reboots on average every 15 minutes during use.
It runs android 4.4.2 stock not rooted. It freeze for 5 seconds and then it reboot.
I tried do the factory data reset, but it still randomly reboots.
I got some last_kmsg files and there are 3 different "last boot reason":
- kernel_panic View attachment 2516007
- wdog_reset View attachment 2516008
- wdog_bite View attachment 2516009
Please help me, what should I do?
Thanks
Click to expand...
Click to collapse
so your device is completely stock and locked with no custom rom or kernel ever or currently applied?
your kmsg's all point to issues i've seen with users on a custom kernel. specifically a user on one version of android and a kernel on a different decimal version (i.e. 4.4.2 firmware and 4.4 kernel, etc).

xBeerdroiDx said:
so your device is completely stock and locked with no custom rom or kernel ever or currently applied?
your kmsg's all point to issues i've seen with users on a custom kernel. specifically a user on one version of android and a kernel on a different decimal version (i.e. 4.4.2 firmware and 4.4 kernel, etc).
Click to expand...
Click to collapse
Yes, I didn't installed any custom rom or anything.
Maybe it's an outdated kernel (Nov 20 1013)? View attachment 2516120
If it is outdated, please tell me how I can update it (I just recived my first Android phone, I'm quite a noob (now))
Thanks
Edit:
I just got a new reboot reason: Last boot reason: hw_reset View attachment kmsg8.txt

Should I root it and install Franco kernel? Will this stop the rebooting?

I have somewhat the same problem although my device doesn't reboot every 15 minutes but rather 2 times every day.
I have the same android and kernel version so I thought I'd bump this post.

I also am experiencing similar behavior. It reboots maybe twice a day. I was on CM11 and was getting frequent reboots suddenly one day. Tried the Franco kernel with no better results. I switched back to stock everything except TWRP, now they are fewer, but still annoying. Could it maybe be an app that we have in common? I did not experience these reboots when I first got the phone, nor for months with CM11, so it stands to reason that it is something that changed recently.

kernel_panic
My phone has never been rooted and it's running stock 4.4.2 with various apps installed.
I've had occasional random reboots and some were before the 4.4.2 update. I've been unable to work out why but if I had to guess, it would be that it's Wifi related. Previously, it's happened when the phone was on the table, apparently doing "nothing". Today it happened when I was clearing a notification.
The last reboot before today was twelve days ago and the "bugreport" contained no "boot_reason". The bugreport I generated after the reboot today, shows "bootreason=kernel_panic". Not really sure what that means so maybe someone can tell me? I'd really like to know whether this is a hardware or software issue.
I did ring Google support after the reboot twelve days ago. The support person suggested I run the phone is "safe mode" or reset it and run it for a few days without installing any apps to confirm that the cause is not an app that I've installed. I haven't done that because the phone isn't very useful without any apps installed. I told the Google support person that I'd generated a bugreport but he didn't know what I was talking about and had no idea where he could forward it to if I was to send it to him.
In contrast, I also have a Samsung Galaxy S3 that has rebooted itself once in 18 months so I'm not impressed with the Nexus. Not sure what to do, next.

[Q] Random frequent reboots after 5.0.1.

Hey everyone.
So, this started happening to my Nexus (stock, unrooted, locked) after the 5.0.1 OTA update: youtube.com/watch?v=BolnMQx3LGs
It started in the first days of January, after receiving the 5.0.1. update. The phone randomly restarts and gets in a boot loop. For the last month it happened once or twice every week, often making the phone useless for several hours. I posted on the Nexus help forums, noticed a lot of people with the same problem as me, but no solutions.
Today I had enough and sideloaded Kitkat again. So far so good, but I don't want to celebrate just yet.
Has this happened to anyone here. Is there a reason for this to be happening or a solution?

I wish I had the answer. My wifes' stock rooted N5 did this 2 weeks ago and I could not keep it booted into recovery long enough to flash any images. I bought myself an N6 then I wiped my CM11 N5 and loaded stock 5.0.1. for her and put in her sim. She was fine for the last two weeks. Now today she says it is doing it to this phone. The first phones' issue looked exactly like your youtube video. Not your standard bootloop. Wiping cache and dalvik did not fix. A couple other threads mention they suspect kernel. Assuming I can get it to stay on the bootloader I will probably flash elementalX and see if that solves it.

thionylx said:
I wish I had the answer. My wifes' stock rooted N5 did this 2 weeks ago and I could not keep it booted into recovery long enough to flash any images. I bought myself an N6 then I wiped my CM11 N5 and loaded stock 5.0.1. for her and put in her sim. She was fine for the last two weeks. Now today she says it is doing it to this phone. The first phones' issue looked exactly like your youtube video. Not your standard bootloop. Wiping cache and dalvik did not fix. A couple other threads mention they suspect kernel. Assuming I can get it to stay on the bootloader I will probably flash elementalX and see if that solves it.
Click to expand...
Click to collapse
Sounds like a stuck power button to me.
Sent from my Nexus 5 using XDA Free mobile app

[Android 5.1] Random reboots.

Good afternoon gents!
This is the first time I post on this forum so I apologize in advance if I am not going to provide all the details regarding my problem. I'll try to be as explicit I can with my issue.
A couple of weeks ago I bought a LG Nexus 5, second hand. After one day of use the device started to randomly reboot. The odd thing is that the reboots seem to be "soft". After the device restarts there is no data loss, even the recent apps are still there. The reboots are as random as I can get, when browsing with Chrome, checking emails, or playing a game.
I tried several fixes, including costum kernels, costum ROMs and so. The problem persisted with the official KitKat 4.4.4 and Lollipop 5.0, 5.0.1 and 5.1.
Currently I am running stock Lollipop 5.1 with stock kernel and TWRP 2.8.5.2 recovery and the device is rooted.
Below I attached a screenshot with the device's current configuration and a text file with the kmsg log from the last reboot.

Faulty power button.
Reboot phone into bootloader/fastboot.
If it random reboots in the bootloader too, it's likely the power button.

Nope, I already tested this. The device reboots during use, either heavy or simply browsing the menu.
Sent from my Nexus 5 using XDA Free mobile app

I noticed this in your Log
"<6>[ 0.514020] [email protected]: Power-off reason: Triggered from UVLO (Under Voltage Lock Out)"
Just curious, Are you undervolting?

I don't know exactly what undevolting implies. Could you give me more details please?

vektor1993 said:
I don't know exactly what undevolting implies. Could you give me more details please?
Click to expand...
Click to collapse
Lowering the voltage the CPU runs at, at certain frequencies.

I understand. No, I did no change any of the voltages. In that log that I posted up there the device is rooted and has TWRP 2.8.5.2 with stock lollipop 5.1 and stock kernel. Later yesterday evening i installed xtrasmooth rom with franco kernel and the phone only restarted in Here Maps from Nokia. I'll run more tests, but from this I draw the conclusion that it is a software problem, not a hardware one. Unfortunately I can't RMA the phone. Do you lads have any other opinions?

vektor1993 said:
I understand. No, I did no change any of the voltages. In that log that I posted up there the device is rooted and has TWRP 2.8.5.2 with stock lollipop 5.1 and stock kernel. Later yesterday evening i installed xtrasmooth rom with franco kernel and the phone only restarted in Here Maps from Nokia. I'll run more tests, but from this I draw the conclusion that it is a software problem, not a hardware one. Unfortunately I can't RMA the phone. Do you lads have any other opinions?
Click to expand...
Click to collapse
Try posting another log if it happens again.

I'm back with the latest ksmg log here. I searched for fixes all over the internet and nothing seemed to fix the problem. Restarts also occur in safe mode. Below is the latest last_kmsg.

vektor1993 said:
I'm back with the latest ksmg log here. I searched for fixes all over the internet and nothing seemed to fix the problem. Restarts also occur in safe mode. Below is the latest last_kmsg.
Click to expand...
Click to collapse
This log shows a kernel panic.

My n5 reboot today without any reason

That was the only thing I understood from the log too. Do you have any idea what's the reason for these kernel panics and a possible way to fix them?

I experienced today three more random reboots. I attached down the logs. As an unexperienced users point of view all of them are produced by a "Unable to handle kernel paging request at virtual address" . Could anyone throw a look on them and give me a possible reason for these reboots and a possible fix? Thank you in advance

vektor1993 said:
I experienced today three more random reboots. I attached down the logs. As an unexperienced users point of view all of them are produced by a "Unable to handle kernel paging request at virtual address" . Could anyone throw a look on them and give me a possible reason for these reboots and a possible fix? Thank you in advance
Click to expand...
Click to collapse
Same problem as this guy
http://forum.xda-developers.com/showpost.php?p=59551481&postcount=8615

having the same problem. i'm running 5.1, but dont know if it's caused by that, cause i just got this phone as a refurbished one from google.

Good day lads!
I tried since the last post more possible fixes, and the only thing that showed some resuslt was downgrading to 4.4 bu the device still resarts exactly once a day. I am going to switch to another phone.
having the same problem. i'm running 5.1, but dont know if it's caused by that, cause i just got this phone as a refurbished one from google.
Click to expand...
Click to collapse
If you just recieved a new device and you have the possibility to RMA it, I suggest doing it. I went as far as page 30 on google searching possbile fixes and came up with no valid result.

settings lag?!

hey guys, one week ago i updated my S6 to 5.1.1 and since then when you enter the settings and start scrolling, the first couple of scrollings the phone lags, it sorts of jumps, i didn't have this issue when i had 5.0.2....can someone help? i have an "old" 5.1.1, the one with the S6 icons and not the NOTE 5

hajyihia said:
hey guys, one week ago i updated my S6 to 5.1.1 and since then when you enter the settings and start scrolling, the first couple of scrollings the phone lags, it sorts of jumps, i didn't have this issue when i had 5.0.2....can someone help? i have an "old" 5.1.1, the one with the S6 icons and not the NOTE 5
Click to expand...
Click to collapse
Could be the reason of a borked update. I suggest to update to the latest 5.1.1 or perform a factory reset.

davebugyi said:
Could be the reason of a borked update. I suggest to update to the latest 5.1.1 or perform a factory reset.
Click to expand...
Click to collapse
i did a factory reset when i updates my phone, i always do, the thing is i don't wanna update via odin to another country firmware....

same situation here! with the 5.1.1 the s6 start to lag everywhere (flash other 5.1.1 rom, de-brand, reset, hard-reset, but nothing change)

Faith140291 said:
same situation here! with the 5.1.1 the s6 start to lag everywhere (flash other 5.1.1 rom, de-brand, reset, hard-reset, but nothing change)
Click to expand...
Click to collapse
yeah, 5.0.2 was better, i am regretting updating my phone...but the ram is better on 5.1.1.....

Me too! There's a big scrolling problem with 5.1! It's like the phone doesn't know at what speed it should scroll.

i am noticing another bug, when someone is calling me, i drag the green circle to the right, it shows the in call screen but you cannot do anything and the call haven't been answered, then 2 seconds later it returns to the screen when someone calling you again....you have to do this 3 times to answer correctly....

Honor 6 - video and interface lagging

Hello everyone.
At the outset I'd like to apologize for my poor english. I hope that I will explain my problem correctly.
For some time my phone (H60-L04) has terrible lags. You can see it when watching a Youtube video or local videos from internal storage or memory card. It looks as if the phone loses a single video frames. It looks awful. It is similar with system interface. The phone does not work smoothly, does not play the video smoothly. At the beginning everything was OK.
The problems started after upgrading from KitKat to Lollipop. Then I noticed the first lag. I tried to restore the factory settings. Did not help. Then I returned to KitKat (of course stock). Lags still existed. I restored back Lollipop and the lags became even worse. With each installation rom is getting worse.
In addition, the phone very warms next to "Honor".
I don't know what's going on. What is bad? :/
Please help.
Regards.

I think some kind of a CPU problem. Did you try to turn off your phone for a couple of minutes?
If you are rooted, look for apps that that can see and disable apps running on background.
From there you can pinpoint the culprit.

Thanks for your reply.
Did you try to turn off your phone for a couple of minutes?
Click to expand...
Click to collapse
Yes. But the problem happens even when the phone is cool.
If you are rooted, look for apps that that can see and disable apps running on background.
Click to expand...
Click to collapse
I don't have root. I checked on the newly installed ROM, without my apps. The problem also occurred.
It seems to me that the situation is deteriorating after a factory reset and reinstallations rom. It's getting worse

Maybe you your base version of kitkat is not compatible with the lollipop version you downloaded. Did you already tried this? This works for me. http://forum.xda-developers.com/showthread.php?t=3099261
[GUIDE] Back to Stock ROM (the sure method)

I tried to restore the stock rom this method from this page: pantomath.xyz/honor-6_l04-how-to-downgrade-lollipop-5-1-beta-to-emui-3-0-using-downgrade-pack-2/
On the stock ROM KitKat situation was the same as on Lollipop what really surprised me
With regard to Lollipop, I have used official packages for H60-L04 from hihonor.com. It was enough just to put Update.app on the phone and make a local update.
Maybe I'm doing something wrong?

what build of kitkat are you using?
i am using B370 and i dont have a problem with this build so far
my only suggestion is to go back to stock rom (B370)
using the method i posted earlier (but you must unlock bootloader first)

I am using B370 too and the problem still persists.

well if thats the case, i suspect you have encountered a problem with your phone's runtime.
have you tried unlocking the developer options?
and changing the 3-animation scale to 0.5x
unlock developer options by tapping 7 times the build number on the about phone settings

droyd.014 said:
well if thats the case, i suspect you have encountered a problem with your phone's runtime.
have you tried unlocking the developer options?
and changing the 3-animation scale to 0.5x
unlock developer options by tapping 7 times the build number on the about phone settings
Click to expand...
Click to collapse
Yes, I tried the settings in the developer options, among others 2D GPU accceleration etc but video is still not running smoothly