Database Users

Phone locks up at 5am each morning.

I've had a SII for a couple of weeks now (new user to android) and I have flashed it to Lightning Rom 1.5. But even before doing this and also afterwards the phone seems to crash/lockup at 5am on about 5-6 occasions.
Is there any program/app I can install to monitor what is kicking in at this time so that I can disable/uninstall it?
Thanks

What do you mean by crash exactly ? Reboot ? Freeze ?
What you could do is plug your phone to your computer before it crashes, and start adb logcat, wait for the crash, and then look at the log to see what caused the crash.

It is completely frozen. I get up at 6:15am and the phone has a blank screen, but I can press a button to activate the screen and the clock is stopped at 5:01am and you cannot do anything else except turn the phone off and back on.

Maybe its the rom? Have you checked its thread? Try flashing bacm to stock. See if problem occurs.
Sent from my GT-I9100 using XDA Premium App

I checked the thread but doesn't appear to be anyone else with same issue. I might try the stock ROM to see if the problem persists. Although I sure it happened once on the firmware that came on the phone (KE2 I think it was).

scheduled backup?

I couldn't find any backups scheduled. So I wiped the phone last night and applied the Lightning 1.5 ROM again and it seems to have been fine this morning..no lockups.
Thanks for the advice.

I had a similar problem with my Nexus S. It went into a bootloop at around 5am... I'm not sure, but I used to think it might be that network operators refresh their networks at that time, and a buggy radio would crash.. This is not normal, if it does the same thing with stock return your phone for repair, especially if you use your phone as your alarm!
Sent from my Sammy Galactic S2 Beastly Device

OccasionalDroid said:
I had a similar problem with my Nexus S. It went into a bootloop at around 5am... I'm not sure, but I used to think it might be that network operators refresh their networks at that time, and a buggy radio would crash.. This is not normal, if it does the same thing with stock return your phone for repair, especially if you use your phone as your alarm!
Sent from my Sammy Galactic S2 Beastly Device
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Click to collapse
I'll keep that in mind if it happens again..cheers. Been OK this morning so shall see how it goes.

Its done it a few more times since I did a factory reset, always at 5:01am. After rebooting the phone and checking the battery stats it appears that 'Cell Standby' has used 52% of all battery consumption and the battery drained from 100% to 9% over 8 hours. The problem also occurs even if the phone is on charge over night.
So maybe it is a buggy radio? Gonna take it back to the store tomorrow to be looked at.

Phone randomly switching itself off

For some reason, my phone is having a nasty habit of turning itself off randomly. Sometimes it randomly resets itself and boots up again on its own, whilst other times it just turns itself off even with a full battery. However, when it turns itself off, I cannot turn it back on without first taking the battery out, then it takes ages for it to boot up again - longer than normal.
Has anyone else had this problem? I'm on stock firmware fully updated (XEU, JVQ)

Yes, same problem. if i press power button for 10 seconds it reboots, no need.to pull off battery
Sent from my GT-I9000 using XDA App

My friend said he also had a similar problem, but Samsung says it isn't a fault and won't fix it, despite having insurance. Getting rather fed up of it now as it's happening more frequently.

Check for apps that has excessive CPU consumption. I had this problem too, but on other ROM. The problem was an stupid app that keeps the CPU 100% all the time and the phone overheat and shut down itself.
Use CPU&Temp widget to monitor your CPU frequency.

If you still have the warranty and are totally stock with no root or anything, why not take it to carphone warehouse tell them the problem, they will reflash the software within a couple of hours. If it keeps happening then go back and tell them it needs to be look at and they will send it off. Before you go make sure you check on samsung's website for the nearest service centre as it needs to be repair centre

It's a software problem, with stock gingerbreads.
Sent from my GT-I9000 using XDA App

sammy_user said:
It's a software problem, with stock gingerbreads.
Sent from my GT-I9000 using XDA App
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Click to collapse
Really?? I had 2.3.3 and 2.3.4 for long enough to test it out (over a month on each) and i never had this issue...
With Darky 10.2.2 (one of the few yes i did)

Same issue here. Think my battery must be on the way out as with wifi, bluetooth and everything switched off, Im getting through half the battery in half a day, and Im not even using the thing.
Im in same situation, upgraded to Gingerbread. It's been rock solid until past couple of weeks.

Same problem here since upgrading to Gingerbread
The phone was solid before never had a single issue with it
Now i get Random powering off when in sleep mode which makes the phone useless
Never does it when on charge though
Tried New Battery = no
Wipe and re- installed software back to factory settings = no
Full re-flash and new software = no
Sent it back to Samsung for repair

might have been something wrong with hardware internals (short circuit somewhere or sumfin)
you might have used faulty mod/theme/rom/kernel
but it is not a problem of Gingerbread firmware for sure

Have you under volted your phone? This often causes reboots. I had to up my voltage at 100 mhz after it started to reboot itself, now ok. system panel monitoring is very useful to look back in time to see what been happening
Sent using TCP/IP

i had the same problem with blockbuster rom
i reflashed it
carried on
then i changed the lockscreen
now its working perfectly

G3 Random Shutdown Observation

Since day one I've had issues with random shutdowns (plenty of threads out there about it). Mine happen when the device is in use, usually when switching between applications.
In my case it disappeared after a reset but then returned after installing lollypop. I get a shutdown maybe once or twice a day. Each time the phone won't turn back on unless I remove the battery.
Just discovered that if it shuts down plugging in a power cable not only causes it to switch back on without a battery pull but it automatically starts again!
Anyone else noticed this? I'm still not sure about returning the device for a replacement! What do you think?

I've had this issue, it did stop for a few weeks without me doing anything to the device but the last couple of days it's returned. Hopefully just software related since so many people seem to have the same issue.

ben.cordy said:
Since day one I've had issues with random shutdowns (plenty of threads out there about it). Mine happen when the device is in use, usually when switching between applications.
In my case it disappeared after a reset but then returned after installing lollypop. I get a shutdown maybe once or twice a day. Each time the phone won't turn back on unless I remove the battery.
Just discovered that if it shuts down plugging in a power cable not only causes it to switch back on without a battery pull but it automatically starts again!
Anyone else noticed this? I'm still not sure about returning the device for a replacement! What do you think?
Click to expand...
Click to collapse
this is a well know issue and has been fixed via software updates, please make sure you are on the latest version firmware.
i had the problem when i first got the phone, solved problem after two updates.

weird_iris said:
this is a well know issue and has been fixed via software updates, please make sure you are on the latest version firmware.
i had the problem when i first got the phone, solved problem after two updates.
Click to expand...
Click to collapse
As mentioned in my original post I had the problem at first but a factory reset with the latest software corrected the issue. I've since upgrades via kdz to the latest lollipop rom (v20a) which brought the issue of random reboots back. As mentioned these seem different to the ones common to this device as they always happen during use of the phone and not whilst it's idle.

The only time i have random turning off is when i leave it on charge over night
Sent from my LG-D855 using XDA Free mobile app

Note 4 freezes while charging after lollipop

I tried posting this in the Sprint thread but haven't gotten any answers yet so perhaps I'll have better luck here. I pasted both posts to show the initial problem and what I did (essentially I factory reset). I'm still having the same problem where my phone will freeze while I'm charging it (about 2-3 times/week) requiring a battery pull. Anybody else seeing this problem or have suggestions on what I should try? Thanks.
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Twice this week my alarm didn't go off (luckily I set a backup today) because sometime throughout the night something happened. When I woke up the phone was frozen on the yellow Sprint Spark startup screen. I needed to pull the battery and everything started up fine. I updated to Lollipop about 2 weeks ago which is where I'm guessing the issues stem from.
Is there anything I should try other than restoring to factory and starting over? I'd prefer to not have to wipe everything from my phone but these issues are becoming problematic. I am not rooted.
Thanks.
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So I ended up doing a factory reset and while the phone certainly started running faster with better battery performance after the reset I'm still having this issue. I would say it occurs 2-3 times a week. It has only occurred overnight which is typically when I charge my phone so I'm pretty sure it is related to being left connected to the charger. The majority of the times I will wake up with a dim yellow Sprint screen and everything else frozen though occasionally the screen will be black with the led notification light red. In both situations the screen will not respond to any button pushes or holds and I need to pull the battery and then everything will start up fine.
Does anybody have any suggestions here on what I should do? I guess I can try and restore one more time and see but I don't really know why it would be different and it is certainly a pain to keep restoring the phone and losing all my settings. I definitely don't want to root now since I believe that voids the warranty and if I can't figure anything out with this I'll certainly be requesting a new phone from Sprint. Before I start dealing with Sprint though I thought I would check here first. Through all my searches on the internet I haven't seen anyone else complaining about this problem.
Thanks.

ks-man said:
I tried posting this in the Sprint thread but haven't gotten any answers yet so perhaps I'll have better luck here. I pasted both posts to show the initial problem and what I did (essentially I factory reset). I'm still having the same problem where my phone will freeze while I'm charging it (about 2-3 times/week) requiring a battery pull. Anybody else seeing this problem or have suggestions on what I should try? Thanks.
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Twice this week my alarm didn't go off (luckily I set a backup today) because sometime throughout the night something happened. When I woke up the phone was frozen on the yellow Sprint Spark startup screen. I needed to pull the battery and everything started up fine. I updated to Lollipop about 2 weeks ago which is where I'm guessing the issues stem from.
Is there anything I should try other than restoring to factory and starting over? I'd prefer to not have to wipe everything from my phone but these issues are becoming problematic. I am not rooted.
Thanks.
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So I ended up doing a factory reset and while the phone certainly started running faster with better battery performance after the reset I'm still having this issue. I would say it occurs 2-3 times a week. It has only occurred overnight which is typically when I charge my phone so I'm pretty sure it is related to being left connected to the charger. The majority of the times I will wake up with a dim yellow Sprint screen and everything else frozen though occasionally the screen will be black with the led notification light red. In both situations the screen will not respond to any button pushes or holds and I need to pull the battery and then everything will start up fine.
Does anybody have any suggestions here on what I should do? I guess I can try and restore one more time and see but I don't really know why it would be different and it is certainly a pain to keep restoring the phone and losing all my settings. I definitely don't want to root now since I believe that voids the warranty and if I can't figure anything out with this I'll certainly be requesting a new phone from Sprint. Before I start dealing with Sprint though I thought I would check here first. Through all my searches on the internet I haven't seen anyone else complaining about this problem.
Thanks.
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Click to collapse
Hi there. I have a Canadian Note 4 (W8) with Bell, and I am having identical issues.
While charging over night, I find my phone stuck on "Samsung" logo, with the bubble animal still running. Holding down the power button does nothing and the only work around is the battery pull. I noticed that it also gets warm (assuming from the screen on time?)
First tried cache wipe - no fix
Factory reset - no fix
Cache wipe again - no fix
Aaaand today I came into work late

jbkmin said:
Hi there. I have a Canadian Note 4 (W8) with Bell, and I am having identical issues.
While charging over night, I find my phone stuck on "Samsung" logo, with the bubble animal still running. Holding down the power button does nothing and the only work around is the battery pull. I noticed that it also gets warm (assuming from the screen on time?)
First tried cache wipe - no fix
Factory reset - no fix
Cache wipe again - no fix
Aaaand today I came into work late
Click to expand...
Click to collapse
Did your issues first start after you upgraded to lollipop?

ks-man said:
Did your issues first start after you upgraded to lollipop?
Click to expand...
Click to collapse
Definitely after the upgrade.
While on KitKat, it never happened (1 month ownership). But after upgrading to lollipop, it has happened 4 times (6 nights since lollipop).

Have you figured anything out with your situation? Woke up this morning to my backup alarm and the Yellow Sprint screen on my phone.
I guess I'll have to try another factory reset and if it still happens try and get a replacement. It just doesn't seem widespread enough of an issue to be a software bug with 5.0.1.

Very frustrated. I did another factory reset but the issue still plagues my device. It still only occurs once or twice a week but when I hear my old clock radio alarm in the morning I know when I look over I'll see the yellow frozen Sprint Spark screen. I am completely out of ideas and guess I will need to have it replaced under warranty. I'm hoping Sprint won't give me a hard time as this will be very hard to demonstrate.
It definitely appears to be a software issue as it never happened before I upgraded to Lollipop but there must be more to it or others would be complaining.
If anybody has ideas please let me know. Thanks.

Response to Note 4 Freeezing while charging
I have found that after turning the quick charge feature off the problem is not happening. Hopefully this is fixed in 5.1

I'm having the same issue even after turning quick charge off..def a lollipop bug, never experienced this on kk.

I know its not the BEST option, but after taking the update to lollipop, sometimes left over kitkat files can make the system poop out. Sometimes a factory reset will take care of the leftovers. But of course, then you have to set your phone up again
If you've tried this or plan to to, let us know the results.
(When i first took the update, my heartrate monitor sensor was always on, so i did a factory reset and it fixed my problem).

Solved with workaround!!!
I faced this "sleep of death" too after updating to Lollipop. I had to pull out the battery almost every time after charging. Very annoying! I noticed though that my phone never froze in my car while charging. Thinking about the difference I realised that I keep my phone awake in the car while charging using Macrodroid (which I love anyway to automise all kinds of things). I made a simple macro which keeps my phone awake while charging and another one that returns the phone to normal while on battery.
While charging: Trigger: Power Connected; Actions: Keep Device Awake enabled & Screen Off, Constraints: None
On Battery: Trigger: Power Disconnected; Actions: Keep Device Awake disabled & Screen Off, Constraints: None
Off course there are alternatives available to Macrodroid that should be able to do the same.
My problems are solved, with and without fast charging. I hope this will help some of you as well.

same problem here
Ive tried turning off fast charging option on the powersaving mode
And also tried the option on developer mode, the "keep device awake while charging"
And even flashing dofferent firmwares from sammobile through ODIN and installed custom roms. These options doesnt resolve the issues on freezing while charging..
I think turnong off your device while charging is the only option..
Im using note4 N910C..

Clasimodo said:
Solved with workaround!!!
I faced this "sleep of death" too after updating to Lollipop. I had to pull out the battery almost every time after charging. Very annoying! I noticed though that my phone never froze in my car while charging. Thinking about the difference I realised that I keep my phone awake in the car while charging using Macrodroid (which I love anyway to automise all kinds of things). I made a simple macro which keeps my phone awake while charging and another one that returns the phone to normal while on battery.
While charging: Trigger: Power Connected; Actions: Keep Device Awake enabled & Screen Off, Constraints: None
On Battery: Trigger: Power Disconnected; Actions: Keep Device Awake disabled & Screen Off, Constraints: None
Off course there are alternatives available to Macrodroid that should be able to do the same.
My problems are solved, with and without fast charging. I hope this will help some of you as well.
Click to expand...
Click to collapse
Thanks a lot, Mate. I'm trying your workaround now. Will report later if it works on my phone. BTW, so, are you sure it is a just a system issue? Definitely, isn't a hardware problem? Did you fix it, after your post -a month ago-, installing, for example, lollipop 5.1.1 or Cyanogenmod 12.1? I'm on 5.0.1, SimpleRom V4. Of course, mi device, N910C, is rooted.
Thanks again.

With lollipop 5.1.1 the problem is solved for me, even without this workaround.
Sent from my SM-N910F using XDA Forums PRO

I'm having similar issues as you guys. I found out that my phone will only perform normally when I charge it with my laptop USB port which I think is around 0.5amps. Anything above that, even a 1amp charger would cause the phone to freeze, reboot and turn off and not turn back on. The phone has been in repair 4 times and the problem is still there. Now every night I'm forced to charge my phone with my laptop which takes an age instead of the fast charger that came out of the box.
Currently my phone is still freezing and rebooting when I'm out and about and the only way I can get it to perform normally is when I plug it into my laptop. This normal functioning would only last whilst the phone is plugged in.

Random shut down

Today I picked up my phone up to send a text and it was no longer powered up. It had randomly shut down.
When I switched it on again I noticed it has lost its battery stats so looks like they were reset or lost. There were no user apps installed on the phone either.
Have you had a similar experience?

You could try to reset it or take it back. Could be defective!!!

Was it somewhere it was hot? Maybe the phone got too warm and hit the shutdown temp?
Honestly hard (read impossible) to tell you what happened. Have any more info / logs?
I haven't had any issues with heat or shutdowns at all. I get 6+ hours SoT every single day at 75% brightness. 100% stock and unrooted. I use my N5 for all the modding aspects like V4A, Xposed, etc. I want this one for Android pay.
Anyways my uptime has been running since I unboxed it on 11/9/15. No issues.

I actually had it reboot in my pocket yesterday on the first day i had it but I already installed a custom ROM so no testing it out now.

RoyJ said:
Was it somewhere it was hot? Maybe the phone got too warm and hit the shutdown temp?
Honestly hard (read impossible) to tell you what happened. Have any more info / logs?
I haven't had any issues with heat or shutdowns at all. I get 6+ hours SoT every single day at 75% brightness. 100% stock and unrooted. I use my N5 for all the modding aspects like V4A, Xposed, etc. I want this one for Android pay.
Anyways my uptime has been running since I unboxed it on 11/9/15. No issues.
Click to expand...
Click to collapse
It was only room temperature. Here in England at 18cc so not too hot, but good point.
I read about the same thing happening with a N5 and it turned out to be a defective mother board.
Guess I should return today then... Bummer

If you just got it, might want to see if it happens again. I had one random reboot the first day and its been fine since.

My phone has started doing the same thing. Twice in 3 hours.

Same here...... 3 times reboot..... And now 2 times shutdowns.

I started having random reboots after I installed greenify. I tried several settings but had the same problem. It rebooted 5 or 6 times a day. I uninstalled it and haven't had any more problems.

I had my phone shut off yesterday and wouldn't boot until I plugged it in (it was at 80% battery). I then noticed that once it booted, it had deleted all of my paired Bluetooth devices.
Sent from my Nexus 6P using Tapatalk

murphyjasonc said:
I started having random reboots after I installed greenify. I tried several settings but had the same problem. It rebooted 5 or 6 times a day. I uninstalled it and haven't had any more problems.
Click to expand...
Click to collapse
Was just having the same problem but it was happening every 30 seconds to a few minutes. Deactivated greenify's device admin ability and now it's gone. Hopefully it stays that way, though if it comes to uninstalling it, that's fine since there don't seem to be as many background apps running on the 6P compared to my verizon LG G4.
Nevermind had to uninstall it.

Shut down, and a little warm
My nexus 6p shut down nearly every day, I just picked it up and it was shut down, I looked under battery and I could see it has been shut down for hours.. hope somebody knows anything about this problem.. I don't think a hard reset will help, because when I got the phone I installed all the update to Android 6.01 (MMB29M) and then I did a hard reset to make sure the phone was as good as it could be..
But maybe I'll try one more hard reset, just to be 110% sure
..
Lars
Danmark.

I'm having this problem too. It happens a couple times a day, and I think it always happens right after I pull it out of my pocket and try to unlock it. I'll feel the vibration from the Nexus Imprint fingerprint sensor, but then the screen doesn't turn on. So I try the power button, and nothing happens because the device is suddenly off. So then I hold down the power button to turn it on, and it boots normally.
Someone mentioned this happening with stock software, which makes me think it's a hardware problem, so we'll need replacement devices. However, I do have Xposed and GravityBox installed, so I need to rule those out first by removing them for a while.

I've had the phone for two weeks now and so far this happened twice.
The only two things that come to mind:
- enabling SRGB in the dev settings
- using a bluetooth headset
Has anybody pinpointed whether this is a HW or SW issue!?
How common is this ... I've seen ppl complaining in this thread and in Reddit also on random reboots as well
Thx

Still happening...
I am having the same issue. Did the reset to factory with no help. Phone was not hot, was sitting on my desk with 81% charged battery. This is the 3rd or 4th time in a week it just shuts itself off for no reason. Has anyone found anything??

I'm having this problem too, now on DVP 3 it's even worse. But I notice today that alarm clock works, but the screen won't. So I think is a SW related, the screen won't wake up, and after a while if you press the buttons the phone reboots. Anyone have e ideas how to fix this?
Enviado de meu Nexus 6P usando Tapatalk

facing this problem since may security update, on purenexus , dirty unicorn and rr rom. dont know if it hw or sw or simply power button getting pressed accidently.

I think I need to reopen this post, coz' I've been facing thif problems for so many times this week so I google around and come to this post.
Has anyone come to a workaround or point out if it is software or hardware related yet...? If it's hardware then I think I'm gonna go for a replacement then!!!

If you haven't done so already, go vote in the "early shutdown" poll