Database Users

Nexus 4 Grey Screen

Hi there,
I recently did a bunch of app updates. I've been running Jelly Bean 4.2.2 for a while and it hasnt given me any problems. After I did my app updates, now in the middle of doing something (be it using Chrome or Gallery or third party apps like Whatsapp), the phone freezes and then tells me the app isnt responding. When I force quit it, I get the top status bar (with the battery indication and what not) and also the 3 buttons underneath. Rest of the screen is black. When i press the power button, the display goes off and when I press it again, I get a grey screen (almost black). And when I press the power button again, it turns black (as in, display has been turned off). I press the power button for a while and turn off the device and turn it back on. It'll boot fine. But after a while of use, the same problem surfaces.
I ran my phone in safe mode and its working perfectly fine! I'm guessing its some app update that caused this. Is there some way of logging this or something to find out?
Thanks in advance.

Help!
Can someone help me out please?

Have you got Titanium Backup? If so, you could try freezing all your user apps and seeing if the problem goes away, and if so then defrosting them one by one.
This is a stock ROM and kernel, right?
Sent from my Nexus 4

I'm on stock ROM but not rooted. I'll check through Titanium Backup.
Thanks.

[Q] Can't turn off screen after Kitkat update. Always stays on. Help!

I upgraded my S4 to Kitkat, and once the phone restarted after the updated, I noticed that the screen kept on. I tried pressing the power button, but nothing happened. The screen has been continuously on ever since the update. Even timeout doesn't work, Smart Stay doesn't come up, and Gravity screen also doesn't work.
Please help!

mankand007 said:
I upgraded my S4 to Kitkat, and once the phone restarted after the updated, I noticed that the screen kept on. I tried pressing the power button, but nothing happened. The screen has been continuously on ever since the update. Even timeout doesn't work, Smart Stay doesn't come up, and Gravity screen also doesn't work.
Please help!
Click to expand...
Click to collapse
I cleared my RAM, and screen started working as usual. Smart stay still doesn't work, so it is not completely resolved.

Thanks for posting your partial solution--hope you get it sorted--:good:

Mine stayed on for awhile then it started working normal. Even after a restart. Might be some background work.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

[Q] Device doesn't turn on except when plugged to power

Hi everyone,
I'm running KK 4.4.2 stock on Nexus 4, bootloader locked, unrooted. Never unlocked or rooted it.
It seems my issue started with the latest camera update; when I tried to take a shot with Lens Blur my phone shut down with a spark sound. I could reboot it fine though. I've had the same issue when using the camera in normal mode with the flash on, but I know it's a known bug on N4.
But since today I can't even switch my phone on unless it is plugged to power. I've tried rebooting in safe mode, I'm having the same issue. When it boots it would show the pretty animated logo, and right when the home screen should appear it'd turn off. Again, if plugged in no problem.
I did a factory-reset, no change. Switched back to factory version of camera, no change.
What do you think could be causing this issue? Is it a power or CPU overload of some kind?
Thanks a lot for your help!

lantilope said:
Hi everyone,
I'm running KK 4.4.2 stock on Nexus 4, bootloader locked, unrooted. Never unlocked or rooted it.
It seems my issue started with the latest camera update; when I tried to take a shot with Lens Blur my phone shut down with a spark sound. I could reboot it fine though. I've had the same issue when using the camera in normal mode with the flash on, but I know it's a known bug on N4.
But since today I can't even switch my phone on unless it is plugged to power. I've tried rebooting in safe mode, I'm having the same issue. When it boots it would show the pretty animated logo, and right when the home screen should appear it'd turn off. Again, if plugged in no problem.
I did a factory-reset, no change. Switched back to factory version of camera, no change.
What do you think could be causing this issue? Is it a power or CPU overload of some kind?
Thanks a lot for your help!
Click to expand...
Click to collapse
So 139 views and no one knows what's happening? I'll unlock the bootloader and flash the factory image, we'll see what happens. If anyone has an idea, please shoot!
Thanks

Could be a failed battery, reflash to stock first then see.

[Q] Screen Black / Auto Powered Off Frozen?

I seem to have the most bizarre issue that started happening last night. Ive been running XNote v3 and AEL kernel fine for a long time now.
Whenever my screen turns off (when i hit the power button or the timer runs out to turn screen off) The phone will after x minutes, either auto reboot or turn off (without shutdown animation)
It then remains off black screen and you do not know this unless you try use it again as you cannot power it back on at all, no sound and the phone is off as if you call you get voicemail.
Anyone any ideas what it might be?
I cant work out if it is software/ hardware related as nothing has changed software config wise and i have not done any updates.
I was thinking of maybe going to a stock kernel and see how that lives.
Its very easy to replicate and the only way to bring the phone back to life is to take the battery out.
If i am using the phone its perfectly fine, no reboots, freezes etc. Its only when screen is off.

OK since no one replied back but a lot of people viewed i thought i would provide an update.
Since factory resetting it
changing battery
wireless charging
removing sim
removing SD card
changing rom
changing kernel
changing back to stock
remove root
boot loader etc
all failed! a new replacement motherboard fixed the problem. i am unsure what caused the fault as it was working perfectly for over a month.

S5 SM-G900F : Black screen/Boot loop; Help?

tl;dr at the bottom
Alright so I'm out of ideas on how to fix this phone, couple of days ago my mom came to me complaining that her S5 was giving her trouble. When she handed me the phone, it was in a bootloop of showing the Samsung Galaxy S5 screen, playing the theme and vibrating afterwards then rebooting. I took out the battery and tried to power it on, it ended up successfully booting into android. So from here, I figured there must have been some malware on the device, I downloaded Malwarebytes from the Google Play Store and ran a scan on the device. However in the middle of scanning, the device turned off it's screen and rebooted. (Malwarebytes found 2 malware on the device at that point) So now I'm convinced it's most likely malware and eventually removed all the detected malware on the device. I gave it back to my mom thinking it was fixed.
Moments later she came back saying that it's still giving issues, my first thought "wdf, it was working wasn't it?". I looked at the phone again, and tried to wake up the device using the power button. The 2 soft keys at the bottom lit up however the screen was still black. At this point, the phone was still working fine, the only issue was the screen wouldn't wake up. So I decided to do a battery pull once again to reboot it and it results in the bootloop once again. I did some googling and found various solutions to this, one of them involved wiping the cache from recovery, so it tried it. Booted into recovery and wiped the partition cache (i think that was it), after it wiped and was about to reboot, I noticed a brief "error icon" just before it rebooted. After this point I could not boot into recovery at all (it would just show a black screen and I would assume that the phone turned off) and it was still in a bootloop. It was only after trying to turn on the phone after trying to boot into recovery that the idea of the phone wasn't off and the screen was just black entered my mind. (Because usually if the phone is off, you can turn it on by holding the power button, the phone would not turn on until after a battery pull)
So at this point, it was late at night and I was tired. I left the battery out and just went to bed. The next day I tried to turn it on again and to my surprise it booted up fine but I was skeptical. I had a theory that the device would work fine as long as the screen remained on, so I set the screen timeout to 10 minutes and kept it on for probably 30 minutes while I continued to google. Since it stayed working during that period of time, I thought perhaps locking the device triggers the issue. I turned of "Power Button instantly locks device" and proceeded to turn off the screen using the power button. When I tried to turn it on, it was back to the same problem (black screen, device is working fine, soft keys lit up). I did a battery pull once again in an attempt to reboot and now it was back to problem #2 (boot loop, can't enter recovery). At this point in time, I considered doing a factory reset but since I couldn't enter recovery, I'd most likely have to re-flash the stock firmware.
Since I didn't have much experience flashing android devices (I personally only flashed 2 or 3 devices ever, all of them were successful but I still didn't really trust myself), I had it sent to a local cellphone company and had them try to fix it. Eventually I got the device back, but they were unable to fix the problem (they tried to flash a stock and custom rom). Now I'm back to square 1, the phone is still in a bootloop, no sound, no vibration this time, I don't have much experience with phones since I've only owned 2 in my life. The phone seems to be soft bricked pretty good, I've still got 1 more trick to try (full stock firmware flash) before I call it quits, any ideas?
tl;dr
- device is stuck in a bootloop (issue 1)
- i was able to enter recovery mode once, now it's not accessible
- download mode is accessible
- the device has been able to boot successfully a couple times, but then it has another issue.
- device's screen would not wake up after turning off, softkeys still worked, everything else still worked. (issue 2)
- the device was sent to a local phone repair company to fix (unsuccessful)
- currently device is stuck on issue 1
additional notes
- device has not been dropped or wet
- device has been owned for more than a year without problems
- this problem was recent (3 days)
- no sd card
- dark screen was turned off
theories
- screen could be malfunctioning or defective somehow, but then if it can show the bootscreen and download mode screen fine it seems unlikely also since it's been working fine for over a year
- it's a software issue of some sort, but has already been flashed by local phone repair to no success, then again I'm assuming they just did a basic recovery flash and called it quits