[Q] Random Reboots. Whats causing them? - Nexus 4 Q&A, Help & Troubleshooting

I've been getting random reboots for a long time now. But it seems to have been getting more frequent recently. Did some research and many said to post up my last_kmsg. Here it is. Hope someone can identify the problem for me. I thought it was the kernel (previously using franco), Hence I dirty flash PA again. It happened on previous versions of PA too and I factory reset from time to time. So I'm not sure whats causing the issue. I cant seem to emulate the reboot. It happens even when my phone is in sleep mode. Let me know if there's any other info that you need. Thanks
Radio: .84
PA Version: 3.99
Kernel: Stock

what apps do you have installed?? is chrome or chrome beta one of them?...i had installed chrome beta and had random reboots as well...if not then try to install a different rom..see if that helps

sometimes it happens i would recommend you a factory reset and try with other ROM.
for example Carbon Rom + Hells Core no deadlocks and very fluid and stable!
they release a nightly per day!

orenzai said:
I've been getting random reboots for a long time now. But it seems to have been getting more frequent recently. Did some research and many said to post up my last_kmsg. Here it is. Hope someone can identify the problem for me. I thought it was the kernel (previously using franco), Hence I dirty flash PA again. It happened on previous versions of PA too and I factory reset from time to time. So I'm not sure whats causing the issue. I cant seem to emulate the reboot. It happens even when my phone is in sleep mode. Let me know if there's any other info that you need. Thanks
Radio: .84
PA Version: 3.99
Kernel: Stock
Click to expand...
Click to collapse
I too have been getting random reboots on PA since moving up to 4.3. I can live with them as they only seem to occur when I'm not using the phone. My guess was it's an issue with 4.3 or PA ... which will be fixed I time, or it's because I restored all apps with titanium, which I don't usually do, and something got ****ed along the way?

acridity said:
what apps do you have installed?? is chrome or chrome beta one of them?...i had installed chrome beta and had random reboots as well...if not then try to install a different rom..see if that helps
Click to expand...
Click to collapse
I just uninstalled chrome beta as you suggested and install chrome in. I'm also suspecting a certain app that is causing the reboot but can't seem to pinpoint which. Hope someone that can interpret the last_kmsg could point out the cause. Will monitor a few days to see how it goes.
alvin182 said:
sometimes it happens i would recommend you a factory reset and try with other ROM.
for example Carbon Rom + Hells Core no deadlocks and very fluid and stable!
they release a nightly per day!
Click to expand...
Click to collapse
Is this ROM battery friendly? Battery is a main factor for me since I don't use much of the customisations like halo or pie. My battery brains reeeealy fast when I turn on 3.5g. Such vast difference compared to when I just use 2g.
Sent from my Nexus 4 using xda app-developers app

nice! if you have uninstalled chrome beta then your problem my friend is solved! ....if you ask me...Vanir Rom by mbq with Hells kernel is a beastly combination. Battery is damn good i get 4-5 hrs of screen on time...and its damn fast too, closest thing to psx compared to speed with almost all the customization you would want

orenzai said:
I just uninstalled chrome beta as you suggested and install chrome in. I'm also suspecting a certain app that is causing the reboot but can't seem to pinpoint which. Hope someone that can interpret the last_kmsg could point out the cause. Will monitor a few days to see how it goes.
Is this ROM battery friendly? Battery is a main factor for me since I don't use much of the customisations like halo or pie. My battery brains reeeealy fast when I turn on 3.5g. Such vast difference compared to when I just use 2g.
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
yes my friend! i am looking for the battery friendly and this one is so stable! and hells kernel is being a good kernel even in Beta.
use 2G we cant do anything respect this.

You will need to catch a log when the reboot happens, since the last_kmsg is only written when the reboot happens, and is not written in case of soft reboots... So i thinkj last_kmsg won't help...

Mine was rebooting fairly often. By chance i went into settings > date and time and somehow the setting for “automatic date and time" got unchecked. Since I checked it I haven't gotten any reboots yet. Just posting this to see if anyone who has been having random reboots has that setting unchecked.

acridity said:
nice! if you have uninstalled chrome beta then your problem my friend is solved! ....if you ask me...Vanir Rom by mbq with Hells kernel is a beastly combination. Battery is damn good i get 4-5 hrs of screen on time...and its damn fast too, closest thing to psx compared to speed with almost all the customization you would want
Click to expand...
Click to collapse
I took up your advice! But I'm still on stock kernel. Not sure if the jss hells kernel will be compatible with the 4.3 rev3. But it was mentioned on the thread that it is though. Haha. I'm getting 2hr+ screen on time with 2g. Maybe I should flash hells?
destronije said:
You will need to catch a log when the reboot happens, since the last_kmsg is only written when the reboot happens, and is not written in case of soft reboots... So i thinkj last_kmsg won't help...
Click to expand...
Click to collapse
I just fetched all 4 logs using syslog app. Will that be helpful? I'm really a noob in this. Hahaha can't read the codes.
threi_ said:
Mine was rebooting fairly often. By chance i went into settings > date and time and somehow the setting for “automatic date and time" got unchecked. Since I checked it I haven't gotten any reboots yet. Just posting this to see if anyone who has been having random reboots has that setting unchecked.
Click to expand...
Click to collapse
Hm... Interesting. Mine have been checked all these while. Don't think this is what's causing my reboots. I'll keep an eye on it nonetheless.
Sent from my Nexus 4 using xda app-developers app

battery life usually depend on kernel..not so much on the rom..give hells kernel a try and see how much juice you can squeeze from your battery...im running jss kernel on rev 3 and works perfectly fine so no need to worry abt that...matrix, semaphore and franco kernel are good alternatives as well if hells kernel doesnt work for you...Are you still getting those random reboots?

The speed of vanir is craaaazy. But I'm not getting more than 2.5hrs screen on when on 2g. And there's some weird issues with the camera. Like screen tearing. Im guessing that would be from the hells kernel being incompatible to an extent.
How do you get 4-5hrs screen time??
Sent from my Nexus 4 using xda app-developers app

Related

Anyone with CM7 getting random reboots still?

Just wondering if you had random reboot issue and then it stopped after flashing cm7? Thanks
I am and it's getting really annoying
mithoss76 said:
I am and it's getting really annoying
Click to expand...
Click to collapse
Have you flashed a different kernel? Or are you over clocked or undervolted? I was getting randome reboots because I was undervolting incorrectly. I am now running Faux's latest .2.0 1.3ghz kernel and have had no reboots.
I get them on rare occasions .... but I'm experimenting with UV ... not frequent enough for me to pinpoint an issue or to be annoyed by it. Last time occurred after after doing a system setting.
I dont get random reboots anymore, cm7 and last faux kernel at stock 1.0ghz fixed it.
I've been on CM7 for a week and no reboots.
been running it for 2 weeks or so. Had one minor glitch yesterday with my device when I locked the screen- she wouldnt wake back up and had to battery pull. Other than that, no issues. I am running Faux's 0.2.0 Stock CM kernel as well.
I had one reboot on my Atrix since running CM7. Compare that with several a week on the stock Motorola software. Using whatever kernel shipped with CM7. Overall, a great improvement!
Sent from my MB860 using xda premium
Reboot here this morning. Actually had to do a battery pull. Faux 2.0 1.3 no undervolt
Sent from my alien
not really random but does anyone else get
a reboot if you leave the torch on to long? It may be a known issue I haven't looked but it seems to happen to me every time..
Sent from my MB860 using XDA App
It could be due to something not getting flashed right. Depending on what rom/fruitcake/etc is flashed, not all images are replaced. That's by design, because the good ol' fashioned SBF flashes EVERYTHING, which you really don't always need, and can be potentially dangerous. Assuming something got corrupted somewhere, or there's an older version of part "x" that doesn't like to play with the never version of part "y", that could cause a crash. You might want to look at a safe way to get a clean wipe, and then redoing CM7. I'm not suggesting SBFs or anything. But I'd check out samcripps' Fruit Cakes @ http://forum.xda-developers.com/showthread.php?t=1163009 though.

how to stop android os from draining battery

OK. I'm frustrating as hell over android os draining my battery. I've tried different type kernel from stock, bricked, faux, Trinity, motley, Franco and every time and android is would take a good chunk if battery life even when I'm doing nothing. Anyone know what's really causing this to happen or how to fix it?
Sorry just realized I posted in the wrong section. This should probably belong in the q& a .
I have this problem on some days. Quite annoying.
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qpqpqp said:
OK. I'm frustrating as hell over android os draining my battery. I've tried different type kernel from stock, bricked, faux, Trinity, motley, Franco and every time and android is would take a good chunk if battery life even when I'm doing nothing. Anyone know what's really causing this to happen or how to fix it?
Click to expand...
Click to collapse
Just started happening to me aswell. I'm completely on stock. Hope someone is able to solve this before I have to do a factory reset..
Turn of Location Updating in Google Maps, Settings?
Worked for me. I had enabled location updating on another device in the past, and the setting had sync'd.
For me a full factory reset using the official factory image from Google + installing franco kernel v28 fixed the issue. Maps usage is still high, but Android OS went from 30% to 8-10%. BAttery life is way better. Which version of franco have you tried ?
Here you can find the latest kernel : [KERNEL][GPL][N4] franco.Kernel - r29
CrazyPeter said:
Turn of Location Updating in Google Maps, Settings?
Worked for me. I had enabled location updating on another device in the past, and the setting had sync'd.
Click to expand...
Click to collapse
This.
CrazyPeter said:
Turn of Location Updating in Google Maps, Settings?
Worked for me. I had enabled location updating on another device in the past, and the setting had sync'd.
Click to expand...
Click to collapse
Did that a couple of days ago, didn't help so far. It decreased Maps battery usage, but not the Android Os process.
Skickat från min Nexus 4 via Tapatalk 2
I flashed cm10.1 and faux latest beta kernel and android os is no longer taking up all my battery
I'm getting about 4 hours screen on time now.
Sent from my Nexus 4 using Tapatalk 2

[Q] Why is Android System consuming so much batter nowadays?

It didn't used to be like this. But now I get a pretty bad drain from Android System. It would be the second highest battery consumer, and would be using the CPU for quite a lot.
I'll post my battery screens and BBS stats soon. But for now, anyone else getting this issue? I'm on CM10.1 M1, tried different nightlies but still getting this f*cking problem. It's driving me crazy.
starscream92 said:
It didn't used to be like this. But now I get a pretty bad drain from Android System. It would be the second highest battery consumer, and would be using the CPU for quite a lot.
I'll post my battery screens and BBS stats soon. But for now, anyone else getting this issue? I'm on CM10.1 M1, tried different nightlies but still getting this f*cking problem. It's driving me crazy.
Click to expand...
Click to collapse
try a different rom besides for cm, or try a different kernel. no such issue here with the rasbean jelly rom/trinity kernel. android system stays between 2-6% here.
simms22 said:
try a different rom besides for cm, or try a different kernel. no such issue here with the rasbean jelly rom/trinity kernel. android system stays between 2-6% here.
Click to expand...
Click to collapse
Alright, I'll give Rasbean Jelly ROM a try.
If you look at my attached screenshot, you'll see what apps are included in Android System. Maybe you use one of those apps a lot? What % is your Android System at by the way?
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android88 said:
If you look at my attached screenshot, you'll see what apps are included in Android System. Maybe you use one of those apps a lot? What % is your Android System at by the way?
Sent from my Nexus 4 using xda premium
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Click to collapse
I have the exact same list of packages for Android System. Right now my phone's been on for an hour and it's at 21%, with a CPU total of 15 mins and it kept my phone awake for 4 minutes.
I dunno why it's like this all of a sudden. A week ago it was completely fine.
The thing is, I did clean re-flashes already and it still does that. I even wiped system. How do I properly reset my phone to get a clean slate? Should I RMA my phone if this issue doesn't go away?
Edit:
Just flashed MiNCO v6, and the drain seems to subside a little bit, but I need more time with my phone to judge better. Sigh, I'm missing CM's quick reply feature already!
starscream92 said:
I have the exact same list of packages for Android System. Right now my phone's been on for an hour and it's at 21%, with a CPU total of 15 mins and it kept my phone awake for 4 minutes.
I dunno why it's like this all of a sudden. A week ago it was completely fine.
The thing is, I did clean re-flashes already and it still does that. I even wiped system. How do I properly reset my phone to get a clean slate? Should I RMA my phone if this issue doesn't go away?
Edit:
Just flashed MiNCO v6, and the drain seems to subside a little bit, but I need more time with my phone to judge better. Sigh, I'm missing CM's quick reply feature already!
Click to expand...
Click to collapse
It's not a hardware issue. The longer the phone is on, the lower % the Android System will be at (obviously lol) because the other stuff is averaging it out. You can also ry changing your kernel.
About the messaging quick reply, just replace MiNCO's mms.apk with CM's.
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android88 said:
It's not a hardware issue. The longer the phone is on, the lower % the Android System will be at (obviously lol) because the other stuff is averaging it out. You can also ry changing your kernel.
About the messaging quick reply, just replace MiNCO's mms.apk with CM's.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Thanks for all your suggestions!

Phone freezing after long charge on Franco Kernel

Apologies if this is covered elsewhere, but I have been struggling to trawl through all 1000 pages on the relevant thread as I can't get the search terms to get the info!
Basically, when I leave the phone overnight charging, in the morning I cannot turn it on unless I press and hold the power button and volume down to reset the device.
Other than this it is great in terms of being able to adjust the colours and the battery life seems better.
I have tried both the nightly and stable versions..
What ROM are you using?
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murtezahu said:
What ROM are you using?
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Click to collapse
I am currently using the stock ROM but could change to a custom... (I am learning as I go at the moment...)
Sounds like your phone is having trouble to wake after a deep sleep. I'm guessing it's caused by a (probably: too) low cpu frequency.
Did you use any app to change the cpu frequencies while asleep, or did you undervolt your cpu?
Also, which version of the kernel are you using? I suggest you stick to M1 for more stable results.
And after all, it might be a bug in the kernel. The people in franco's thread are more than willing to help you if you supply as much information as you possibly can. Kernel version, your adjustments to it if any, etc. I haven't seen this problem happen to anyone before in the last days (oh yea, I read every page of that thread...), so don't be afraid to ask for some help. But for now, I suggest you update to M1. If you're already on M1, feel free to ask your question in the thread.
LOL
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sounds like a classical case of sod. do you undervolt?
and rolmply
simms22 said:
sounds like a classical case of sod. do you undervolt?
Click to expand...
Click to collapse
No, I do not undervolt. The only changes I made were to gamma settings. Having said that I did change the power setting but changed it back. I have rebooted the phone so I will see if it happens after the next deep sleep.
Thanks for the help so far, much appreciated!
vindikleuk said:
Sounds like your phone is having trouble to wake after a deep sleep. I'm guessing it's caused by a (probably: too) low cpu frequency.
Did you use any app to change the cpu frequencies while asleep, or did you undervolt your cpu?
Also, which version of the kernel are you using? I suggest you stick to M1 for more stable results.
And after all, it might be a bug in the kernel. The people in franco's thread are more than willing to help you if you supply as much information as you possibly can. Kernel version, your adjustments to it if any, etc. I haven't seen this problem happen to anyone before in the last days (oh yea, I read every page of that thread...), so don't be afraid to ask for some help. But for now, I suggest you update to M1. If you're already on M1, feel free to ask your question in the thread.
Click to expand...
Click to collapse
Thanks for the reply.
I am currently using milestone 1.
As far as I am aware I only made changes to the colour as I am still learning the controls as I go. I have restarted the phone to see if it helps.
The only app that I am using that could be to blame is battery guru, so if it persists, I could try disabling that.
goldeneye243 said:
No, I do not undervolt. The only changes I made were to gamma settings. Having said that I did change the power setting but changed it back. I have rebooted the phone so I will see if it happens after the next deep sleep.
Thanks for the help so far, much appreciated!
Click to expand...
Click to collapse
do you use the pgm slide to wake app?
simms22 said:
do you use the pgm slide to wake app?
Click to expand...
Click to collapse
No, I don't - Should I, or is it possibly what is could have caused the problem?
goldeneye243 said:
No, I don't - Should I, or is it possibly what is could have caused the problem?
Click to expand...
Click to collapse
its a possible cause of sod if you had it installed.
goldeneye243 said:
Thanks for the reply.
I am currently using milestone 1.
As far as I am aware I only made changes to the colour as I am still learning the controls as I go. I have restarted the phone to see if it helps.
The only app that I am using that could be to blame is battery guru, so if it persists, I could try disabling that.
Click to expand...
Click to collapse
You're using the exact same set-up I am, and I'm haven't had any of the trouble you talk of. Disabling battery guru might be a good idea. As it's an app from Qualcomm itself, I wouldn't be surprised if it's set to mess around with the stock kernel's settings. If that's the case, then your kernel is obviously not the kernel that Battery Guru was programmed to mess with! Uninstalling it to see what happens next would be a good step :highfive:. From my experience, you wouldn't need any battery management apps when you're on franco's M1 anyway - using common sense to save your battery should suffice.
vindikleuk said:
You're using the exact same set-up I am, and I'm haven't had any of the trouble you talk of. Disabling battery guru might be a good idea. As it's an app from Qualcomm itself, I wouldn't be surprised if it's set to mess around with the stock kernel's settings. If that's the case, then your kernel is obviously not the kernel that Battery Guru was programmed to mess with! Uninstalling it to see what happens next would be a good step :highfive:.
Click to expand...
Click to collapse
I will do that if I have not already got it fixed with the reboot. Battery guru is still in learning mode so possibly isn't messing with the kernel yet but is the next thing to try...
Alrighty, let's hope it'll get figured out.
vindikleuk said:
Alrighty, let's hope it'll get figured out.
Click to expand...
Click to collapse
Well, it turned on OK this morning, so hopefully fixed...
I guess I will only know in a few days time when I have got more confidence...
I had another SOD so I have reset all settings (installed nightly version 110) and started again -
The only changes I have made are to the gamma settings and changing the governer to conservative to see if that gives me a longer battery life.
Will see how it goes....
I had some more SODs with 110/111 so I changed to 121 and the battery life did not seem as good.
Takes a while to work out what is going on when it only happens once a day...
I still get occasional SODs with battery guru disabled so i guess it is either the kernel or possibly the ROM... I will try on the support thread....

[Q] Deep sleep reboot or something else?

So, I've been running the Milestone release of AOKP for a while and while it's been generally stable, I seem to be having an an issue with reboots when I don't use the tablet for a while. Maybe.
Once maybe every few days, if it's been sitting for a while (or charging), when I unlock, all of my recent apps have been cleared. The stock battery info doesn't indicate any downtime, but GSAM battery monitor will indicate a reboot.
I've seen this on both KToon and Franco's most recent kernels.
Anybody else? Any ideas?
Thanks!
Sent from my Nexus 10 using xda app-developers app
calbruc said:
So, I've been running the Milestone release of AOKP for a while and while it's been generally stable, I seem to be having an an issue with reboots when I don't use the tablet for a while. Maybe.
Once maybe every few days, if it's been sitting for a while (or charging), when I unlock, all of my recent apps have been cleared. The stock battery info doesn't indicate any downtime, but GSAM battery monitor will indicate a reboot.
I've seen this on both KToon and Franco's most recent kernels.
Anybody else? Any ideas?
Thanks!
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
My aokp+franco also falls asleep and I nave to reboot. It's annoying, I'm going to change ROM. I'd like to know if it is related to the ROM or the kernel though.
I'd guess OP is seeing 'surface flinger RAM shell reboot' that's talked about often.
I'd guess europizza has a unit that is having a battery/motherboard/"power" related issue.
Why? - Based on reading these and other N10 help forums for the last 6 months.
europizza said:
My aokp+franco also falls asleep and I nave to reboot. It's annoying, I'm going to change ROM. I'd like to know if it is related to the ROM or the kernel though.
Click to expand...
Click to collapse
While I have had the SOD with AOKP and Franco/KToon kernels, what I'm talking about isn't the tablet not waking up. It's that it's rebooting while charging or not being used for extended periods of time. (But I haven't had any SOD issues with the latest version of either of those kernels, btw.)
bigmatty said:
I'd guess OP is seeing 'surface flinger RAM shell reboot' that's talked about often.
I'd guess calbruc has a unit that is having a battery/motherboard/"power" related issue.
Why? - Based on reading these and other N10 help forums for the last 6 months.
Click to expand...
Click to collapse
Ah, thanks. I've seen talk of this surface flinger business before, but never really knew what it was referring to. Haven't researched it much yet, but it sounds like something I'll just have to deal with for now.
Thanks again.
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