[Q] Unusual S3 lock screen problem - Android Q&A, Help & Troubleshooting

Hi all,
I have a Samsung Galaxy S3 GT-I9305T rooted and running Android 4.3 with Touchwizz.
The problem I am having is that the screen will not turn off and pressing the power button will not lock the phone. Holding the power button will bring up the device options menu (power off, restart etc) indicating that the button itself is still functioning.
Restarting the device will boot to the lock screen, however the screen still wont turn off and after unlocking the phone once, you can no longer lock the phone.
In the phones settings, under battery it shows that it doesn't even register the screen as being on or the phone being awake (see image) however the phone is still completely functional aside from the issues stated above.
This problem occurred after accidentally dialling emergency services from the lock screen while watching a video on my computer and absent mindedly spinning my phone in my fingers. As soon as I saw it was dialling I cancelled the call and took the battery out. When I started the phone I noticed the screen wouldn't turn off and the phone wouldn't lock.
Hoping I wont have to do a factory reset, if anyone has any ideas or suggestions, they'd be greatly appreciated.
Thanks

Have same problem with my Alcatel Onetouch Fierce 2. Fairly certain it's from this Kingroot in my case. However I don't know enough to prove this. I started using apps to lock the screen for me but they started not working as well.

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[Q] Problem when my phone is recovering from Sleep mode

Hi everyone !
I'm new here (and not a native english speaker, so apologies in advance for any grammar mistakes)
Before making this thread, I looked for info here, but I'm not sure for what to search.
I'll try to explain my problem here.
I bought a Galaxy SIII from my provider 3 weeks ago and everything looked fine, till last week.
Some times to time, with no apparent reason or cause, while my phone is on sleep mode, on my desk, or in my pocket, playing music, I have the following problem: when I push the on/off button to wake up my phone, my screen is turning on, taking me to the lock screen.
But, my screen brightness is very low, like set to the minimum.
And when I draw my unlocking pattern, screen goes black.
Bottom buttons are lit and my phone seems to be OK, I can feel haptic feedbacks.
But the screen is black.
If I push the on/off button again, screen stays black and bottom buttons are not lit anymore, as a usual Sleep Mode.
If I push on/off again (depending on how much I wait between 2 on/off):
- My phone awakes from Sleep and takes me again to the unlock screen, brightness still very low. And after the unlocking pattern traced, black screen again
- If I didn't wait enought after putting it into sleep mode, in this case, I don't have to redraw the unlocking pattern. I'm back to my home screen...
for 1/4 of a second, stilll with brightness at the minimum. And screen goes black.
And after a serie on onoffonoff, boom, my screen is back to full and normal brightness and everything is OK.
At the beginning, my phone did that once in a while. I thought at the time ti was after pushing the on/off button while using a CPU/RAM hungry app, my phone struggling to recover....
But now, it's totally random.
Depending on .... I don't know what, I have to do the onoffonoff thing 2, 5, 10, 50 times in a row so my phone can recover from is half comatose.
Yesterday, I could not use my phone for half an hour ...
and if someone calls me, I hear the ringtone, but screen stays black.
I can answer the call (but not knowing who's calling) by sliding on the part of the screen where the slider normally is.
Funny thing is about removing the battery. It doesn't solve my problem.
When I do so, my phone boots, I see the "Samsung Galaxy SIII" boot screen, on low brightness (whih is not normal ...)
After that, I normally have another boot screen with my provider's logo and tone. But screen goes black again (but I still here the tone)
Then I realized it started to happen when my phone proposed me a Samsung update.
I tried to reset my phone to factory settings but it didn't work, the update was still here.
For a while I thought my problem was solved, because my phone behaved normally for 3 or 4 hours, without problem.
But it came back.
I found on the internet several "almost-same-problems" without proposed solutions.
Like checking if the proximity sensor was blocked by a protective transparent plastic sheet, or a case.
I tried to to remove mine.
Didn't work.
Some people said it was linked to their phone trying to acquire a wifi network.
My wifi on or off, withiin or without the range of a wifi router didn't work ...
I tried to note things down about what I did, when, how, app launched before the problem appears.
I checked battery info (temp, voltage, etc).
No pattern emerged.
So.
Hs anyone of you enountered the same problem ?
Do you have ideas, solutions I can use ?
Or maybe a voodoo prayer ?
I could sent it back to my provider which will bounce it back to Samsung. But it will take ages (3 to 4 weeks ...) :'(
Thanks in advance !
do a factory reset, go completely stock
if that doesn't help, send it in
Glebun said:
do a factory reset, go completely stock
if that doesn't help, send it in
Click to expand...
Click to collapse
That's what I did.
I tried by going into the Parameters menu, and reseting.
I tried by booting my phone with Vol+ / Home / Power buttons to access a console mode and do a wipe data/reset.
The problem is that my phone got an update like one week ago from a 4.?.? to 4.1.2.
And even with a reset, my phone reboot with the 4.1.2 version, which seems to cause this problem.
Or maybe not, but I can't be sure.
As I said, after a factory reset I did yesterday, everything went well for 3 or 4 hours and the problem reappeared.
send it to the service

[Q] Display shaking and dead

Hello people,
I flash the ROM "CM 10.1 (Android 4.2) for Atrix" with the new kernel today and at the beginning everything worked fine.
But after a few minutes setting up the phone, the screen started shaking a moment until the display turn off (turn off but the phone is still working as if the touch also responds and physical keys are lit). When locking and unlocking the phone, the screen returns to normal.
I realized that the longer I leave it off, the longer it takes to give this bug, after turn on the screen again.
The brightness is at maximum and the phone is not too hot.
At least the phone stopped rebooting but play or do anything else is impossible (I can only make calls) because of this bug.
Any idea why this is happening?

[Q] Samsung galaxy S4 GT-I9505 Problem

Hi
I have an unlocked samsung galaxy s4 gi-i19505
Recently after i updated to 4.4.2 kitkat i started having problems. After the phone is not being used for a while, when i press the unlock button the unlock screen appears but the circle with the lock inside it is missing and the phone appears to loose touch i can't unlock the phone or pull down the notification panel. When i press the lock button again the screen goes black and the phone just freezes completely. It doesn't react to the unlock button any more or to the home screen button. I have to take out the battery and then everything is normal again until the phone is left unused for a while again.
I tried reinstalling the firmware again but it didn't help. I didn't factory reset the phone as I don't want to be setting it up again as it takes me a while. Does anyone have similar problems knows how to fix it ?
Thanks.

Power manager lock was not held when calling updatePowerStateLocked error.

Recently I am facing issue with my phone (Asus Zenfone 2 ZE551 ML). The screen always stays on and never go back to sleep.
Even when I lock my phone, the lock is automatically opened and the screen stays on forever. The only option to turn it off is switching the phone off. I have tried a factory reset, wipe cache partition but the problem is still on. I have debugged and the problem seems to be with the Wake locks. The error receiving in the log cat says "Power manager lock was not held when calling updatePowerStateLocked".
Any help will be useful. Thanks.

Screen will not turn on once it's off

Hey guys, help me please troubleshoot this issue without resetting my phone..
My Samsung phone (after small/short water damage) has an issue..
If I turn it on, the screen lights up and I can see Samsung logo and welcome screen.
I can login to my phone using pattern unlock and use it just fine, there is no issues, but once screen turns off (due to screen time out, or if I press power button) it will never turn on again, even fingerprint doesn't turn it on..
AOD will not come up as well
Any thoughts?

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