Has anybody experienced random shutdowns on their N4? It's happened twice now for me in the last few days. I'll go to turn on the screen and find that the phone is completely shut down and needs powered back up, without me having shut the phone down.
One strange thing associated with this is that it completely wipes my battery stats.
Please provide more information.
Stock? Unlocked? Rooted? Custom rom? Custome kernel? Undervolted?
spitefulcheerio said:
Please provide more information.
Stock? Unlocked? Rooted? Custom rom? Custome kernel? Undervolted?
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Sorry, stock rooted. Both times happened when there was plenty of juice left in the battery, this morning when it happened I was still at 95%.
hfuizo said:
Sorry, stock rooted. Both times happened when there was plenty of juice left in the battery, this morning when it happened I was still at 95%.
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Are you sure it's actually shutting down?
The reason I ask is that there's an issue where the screen won't wake up, but the phone is still functional (can still hear notifications and feel vibrations etc.). It looks like it's shut down, but it actually isn't.
If so then I believe it's a known issue, even on the stock (unrooted) rom. It happens to me every now and then, and as far as I know it needs a hard reboot to fix (hold down the power button for 10 seconds).
Don't know what you mean by wiping your battery stats? A reboot would do that anyway, wouldn't it?
hfuizo said:
Sorry, stock rooted. Both times happened when there was plenty of juice left in the battery, this morning when it happened I was still at 95%.
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There's a video on youtube showing how this phone just shuts down after running a benchmark for long enough (that was about 10 minutes at normal room temperature..)
Could it be that your phone was doing something in the background, and because of the overheating issues that it has, it just shut down to prevent damage?
jb91 said:
There's a video on youtube showing how this phone just shuts down after running a benchmark for long enough (that was about 10 minutes at normal room temperature..)
Could it be that your phone was doing something in the background, and because of the overheating issues that it has, it just shut down to prevent damage?
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I wasn't doing anything significant right before hand. The last things I did were: checked Facebook, modified a Tasker profile, and swiped away a couple apps from the recent apps screen. Phone was cool to the touch. I was in the basement with no cell coverage (wifi connected), then moved upstairs and next time I tried to turn on the screen the phone was powered off.
Shodney said:
Are you sure it's actually shutting down?
The reason I ask is that there's an issue where the screen won't wake up, but the phone is still functional (can still hear notifications and feel vibrations etc.). It looks like it's shut down, but it actually isn't.
If so then I believe it's a known issue, even on the stock (unrooted) rom. It happens to me every now and then, and as far as I know it needs a hard reboot to fix (hold down the power button for 10 seconds).
Don't know what you mean by wiping your battery stats? A reboot would do that anyway, wouldn't it?
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No it was shut down, had to hold down the power button for 2 seconds to boot it, felt the boot vibration and saw the boot animation. This happened after being off charger for about 2 hours, but upon booting the battery screen showed on battery for 1 minute. Usually when I reboot the "on battery" time is preserved.
Shodney said:
Are you sure it's actually shutting down?
The reason I ask is that there's an issue where the screen won't wake up, but the phone is still functional (can still hear notifications and feel vibrations etc.). It looks like it's shut down, but it actually isn't.
If so then I believe it's a known issue, even on the stock (unrooted) rom. It happens to me every now and then, and as far as I know it needs a hard reboot to fix (hold down the power button for 10 seconds).
Don't know what you mean by wiping your battery stats? A reboot would do that anyway, wouldn't it?
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Is there a fix for the screen not waking? I'm still on 4.2(stock and rooted), does 4.2.1 fix it? I can't seem to update to 4.2.1, if it does fix it. But that's another issue...
Ya know I'm starting to think it may be my belt holster that's somehow shutting down the phone. This is the first day of my new holster and now the phone has shut itself down 3 times, each time I've noticed it after pulling it from the holster.
hfuizo said:
Has anybody experienced random shutdowns on their N4? It's happened twice now for me in the last few days. I'll go to turn on the screen and find that the phone is completely shut down and needs powered back up, without me having shut the phone down.
One strange thing associated with this is that it completely wipes my battery stats.
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Click to collapse
I only had N$ for 3 days.
Yesterday when I was taking a picture, camera app was running, while I was putting kids together phone screen went black. Only way to bring it back was to hold power button and it went through full boot up cycle, so I would say it did shut down on me.
Stock, no root, updated to the 4.2.1. Battery was between 50 and 75% and it did not wipe it's stats.
stud_muffler said:
I only had N$ for 3 days.
Yesterday when I was taking a picture, camera app was running, while I was putting kids together phone screen went black. Only way to bring it back was to hold power button and it went through full boot up cycle, so I would say it did shut down on me.
Stock, no root, updated to the 4.2.1. Battery was between 50 and 75% and it did not wipe it's stats.
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Oh man that's gotta suck. Worst moment possible. Mine has shut down as well several times.
I find that my phone likes to randomly reboot when using bluetooth. May be a coincidence or not. At times the widget toggle for bluetooth stops working too, so there's something going on with bluetooth. My bluetooth problems documented here:
http://forum.xda-developers.com/showthread.php?t=2040796
hfuizo said:
Ya know I'm starting to think it may be my belt holster that's somehow shutting down the phone. This is the first day of my new holster and now the phone has shut itself down 3 times, each time I've noticed it after pulling it from the holster.
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Does anybody know a sequence of button pushes that will shut down the device? I know holding power for 10 seconds causes a reset, but is there a combination of button pushes that initiates shutdown?
hfuizo said:
Does anybody know a sequence of button pushes that will shut down the device? I know holding power for 10 seconds causes a reset, but is there a combination of button pushes that initiates shutdown?
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If you hold just power button it should bring a popup with Power Off option, which is a standard for most Android phones.
hfuizo said:
Has anybody experienced random shutdowns on their N4? It's happened twice now for me in the last few days. I'll go to turn on the screen and find that the phone is completely shut down and needs powered back up, without me having shut the phone down.
One strange thing associated with this is that it completely wipes my battery stats.
Click to expand...
Click to collapse
I have the same issue recently. I've used nexus 4 for 1 month, this issue just occurred recently. it shutdown without any notice. I've drop my phone once, cracking its glass back, but it doesn't seem to relate to that issue. I guess maybe this is some software problem.
I'm currently on AICP LP stock kernel and stock kernel settings, but this happens in other CM-based ROMs as well as stock 4.4 ROM.
First it was rebooting during call, then I flashed different ROMs, to no avail.
Then I realized that it doesn't reboot when charging. So I suspected the battery, replaced it yesterday, no use.
This morning I found out that it doesn't reboot when calling with the screen on, and therefore I suspected it was some power saving settings that activate only when on battery and screen off, that causes the reboots during call.
I found the battery setting was in balanced mode, and changed it to performance mode. So far I made more than 30 test calls, no reboots.
So in short, reboots only occur during call while on battery with the screen off and not in performance mode, and in this situation they occur fairly often, like once every few minutes of calling.
Although it seems to be working now I'm still curious about what the problem really is. Since it reboots in a clean stock 4.4 KDZ install, I suspect there is a hardware problem (I haven't tried the stock ROM on the new battery though). What do you think the problem may be? What's the difference between performance and balanced modes that could have caused it? What further diagnostics can I do to find the real problem?
Thanks in advance!
I investigated further. This seems like a CPU voltage problem. The default voltages at the lower end of the frequency spectrum are too low. I have to increase them from the 800-850mhz range to 850-900mhz. Now it works fine.
I guess in performance mode these lower frequencies are used much less, which therefore doesn't cause the reboot.
Is it because that as batteries degrade over time, they output lower voltages and so the CPU is fed lower voltages? Therefore I have to increase the voltages to compensate?
Thanks.
Hello
In few days i met with BLOD. I couldn't unbrick my phone until i get my heatgun, and fix it.
Now i have pretty similar problem but dunno how to solve it. Actually i am using PixelExperiece 30.12.2018 and phone sometimes just turn off and can't get up until i heat it up. Its turning off randomly but as i noticed mostly after pluging into charger or pc.
With battery is something strange because when im outside and has left 20% battery phone is turning off and after boot up i see 1-5%, does only changing battery can solve this problem?
Edit:
Tried On StatixOs, AOSP and AOSiP, it still get bricked but as i noticed only when screen is off.
Now im checking when AlwaysOn is enabled, if this wont work, will try with another Custom kernel and at the end on the FullStock
Edit 2:
Better but still shutdowning
I guess I'm running into the dreaded 70% -> 0% sudden system shutdown issue.
I hear that the issue is power related anyone here know any success with messing around with the CPU governor my device isn't rooted so I might have to go through that process first. but I would like to know if anyone here has had any success with getting their Nexus 10 to hobble along and not suddenly shutdown after 70% battery life.
Are you still on stock rom? I think I have this issue too! OH CRAP..
So, i had this random rebooting issue on stock oreo, after installing custom roms it went away for a while but now the issue is back again, My phone will randomly reboot as if my battery has just died(while plugged in or fully charged).. I can be playing games or just scrolling through my home screen and it will reboot without warning, then starts up like nothing happened.. any ideas on how to fix this?
texas7412 said:
So, i had this random rebooting issue on stock oreo, after installing custom roms it went away for a while but now the issue is back again, My phone will randomly reboot as if my battery has just died(while plugged in or fully charged).. I can be playing games or just scrolling through my home screen and it will reboot without warning, then starts up like nothing happened.. any ideas on how to fix this?
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Hey Texas, I'm not sure how old your battery is. But if your battery is on the fritz it could be losing voltage in your phone will shut down. I think you'll normally get a bad battery warning but I'm not positive. I'm using Alpha Oreo 1.3.1 with MK 2000 version 2.2 kernel. And have not had any random reboot problems. On the contrary. It has been extremely stable and I'm getting extremely good battery life especially with greenify. Normally 24 to 27 hours on a full charge. With anywhere from 3 1/2 to 6 hours of screen time.