Tablet functions as expected after power-on by presenting lock screen and as expected after unlocked. However, once the screen times-out and turns to black, it will not turn on again no mater what swipe or button is pushed unless the unit is powered off then on again.
Flash stock firmware and test .
jeco7 said:
Tablet functions as expected after power-on by presenting lock screen and as expected after unlocked. However, once the screen times-out and turns to black, it will not turn on again no mater what swipe or button is pushed unless the unit is powered off then on again.
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same, phone works fine but lock screen wont work after it locks itself, power button works but phone screen wont light up, responsive but no light up.
Same problem. Has anyone come up with a solution yet?
As posted flash stock firmware.
Fails its hardware.
Related
This is really weird, my NS just always lights up the screen after I lock the screen.
I locked screen, the screen went black, then after a few seconds the screen turned on just like I pressed the power button.
Why this kind of thing happens? I have reboot my phone, It still the same.
So when my phone is locked, the home button turns the screen on. This is fine, I often use it to check the time and such. However, to turn the screen back off I have to hit the power button.
Wondering if there's a way to set the phone so that the home button turns OFF the screen too (when phone is locked)? Possible?
Now, I'm no developer, but I'd have to say not possible. Unless someone can script an app to only work when the phone is in lock mode, but that just seems doubtful.
Sent from my SCH-I535 using xda app-developers app
byproxy said:
So when my phone is locked, the home button turns the screen on. This is fine, I often use it to check the time and such. However, to turn the screen back off I have to hit the power button.
Wondering if there's a way to set the phone so that the home button turns OFF the screen too (when phone is locked)? Possible?
Click to expand...
Click to collapse
Same situation as you, found the answer in another forum.
Ive been using this app to turn off the screen by the proximity sensor, so far working great.
Smart Screen Off LITE
https://play.google.com/store/apps/...xLDEwMiwiaXQuYW5kcm9pZC5zbWFydHNjcmVlbm9mZiJd
you can try a custom rom to get it
byproxy said:
So when my phone is locked, the home button turns the screen on. This is fine, I often use it to check the time and such. However, to turn the screen back off I have to hit the power button.
Wondering if there's a way to set the phone so that the home button turns OFF the screen too (when phone is locked)? Possible?
Click to expand...
Click to collapse
It is possible when you giving up actual home button function.
Then you have to enable on-screen navigation bar, instead of hardware physical button.
This thread is over 2 years old guys. Also, if you run AOSP, double tap the status bar to turn the display off. Works on SlimKat, should be like that on CM too.
Sent from my SCH-I535 using Tapatalk 4
At first I thought this was impossible, I am using "Light Flow" and always as soon as I unlocked the screen, the led turned off.
But now, I flashed a kernel with touch controls, and I notice that when I wake up the screen with a double tap or a swipe, and I'm on the PIN/etc locker screen, the led is still ON! In fact, it can stay on until I unlock the phone..
If hardware can handle screen and led on at the same time without a problem, there's any way to keep it ALWAYS on without caring if you wake up the phone with the button or unlock it?
Thanks!
Hello everyone,
I bought a LCD replacement for my OPO, and asked a friend to replace the screen (he had his own OPO, and changed the screen on it a couple times, so I trusted him).
The frame was not included, so the phone is without it unfortunately.
But I have this problem with the screen itself...
I boot the phone, everything goes well, it boots, everything ok, I can do everything...
Then the phone goes to sleep after the 30s, and sometimes when I press the button to turn it on, the lights in the bottom light up, I can hear sounds, I can swipe to answer calls for example, but the screen stays all black.
If I press the power button to turn it to sleep mode and then click again to wake it within 1 or 2 seconds, it works everythime.
Its just when it goes to sleep... And then I have to press the power button to reset the phone, and it boots again.
I'm using the LineageOS Rom, and I never had problems like this before replacing the LCD.
What caused this? Could the screen be "broken" when I bought it?
Thank you for reading this and for the help!
nunong21 said:
Hello everyone,
I bought a LCD replacement for my OPO, and asked a friend to replace the screen (he had his own OPO, and changed the screen on it a couple times, so I trusted him).
The frame was not included, so the phone is without it unfortunately.
But I have this problem with the screen itself...
I boot the phone, everything goes well, it boots, everything ok, I can do everything...
Then the phone goes to sleep after the 30s, and sometimes when I press the button to turn it on, the lights in the bottom light up, I can hear sounds, I can swipe to answer calls for example, but the screen stays all black.
If I press the power button to turn it to sleep mode and then click again to wake it within 1 or 2 seconds, it works everythime.
Its just when it goes to sleep... And then I have to press the power button to reset the phone, and it boots again.
I'm using the LineageOS Rom, and I never had problems like this before replacing the LCD.
What caused this? Could the screen be "broken" when I bought it?
Thank you for reading this and for the help!
Click to expand...
Click to collapse
Well,clearly the issue is lcd itself.Happened with me on my last screen replacement,it was defective.Though in my case,I had to power on/off the device to get the display back.Get a refund or replacement,there's no other alternative.
First of all I appreciate any and all help on this matter. My problem is simple yet the solution escapes me. My phone starts up fine works fine and there are no problems....until I wake it up from sleep. The phone itself comes on and I can tell that the screen wakes up, but there's no blacklight, just a very dark home screen. So far the only annoying thing i have to do is reset it and it works fine again....until it goes back to sleep. I guess my question is, is this an issue that can be resolved (software). Or is it unfixable without screen replacement (hardware).
You need to test a few things beforehand.
Does it only produce this issue if the screen times out, or by manually pressing the power key to turn the screen off, or both?
Does the screen appear dim when you wake it up via the power button, hard pressing the home button to wake, or using your fingerprint scanner to turn on and unlock your device or a combination of those listed?
I would try safe mode.
You can boot into safe mode by following the below instructions:
1. Power off your device in question
2. Press and hold the power button to turn on the phone
3. When the Samsung logo disappears, release the power key and press and hold the volume down key
4. Continue holding the volume down key until the phone has finished restarting
5. You should now be in safe mode and can verify by looking in the bottom left of the screen for text that states you're in safe mode
After you have successfully booted into safe mode you need to allow your screen to turn off manually, automatically, or both(whichever results in a dim screen when normally booted up) when testing the below steps.
Turn your screen on via the power button and see if the issue remains.
Turn your screen on via the hard press to wake home button (not sure if this is available from safe mode, but worth a try) and see if the issue remains.
Turn your screen on via the fingerprint sensor (not sure if this works from safe mode either) and see if the issue remains.
If all successfully turn on the screen with normal brightness then I would say it's more than likely NOT a hardware issue. If one or the other does not produce normal screen brightness then it's more than likely hardware. If all result in a dim screen then it could be either hardware or corrupt software.
Outbreak444 said:
You need to test a few things beforehand.
Does it only produce this issue if the screen times out, or by manually pressing the power key to turn the screen off, or both?
Does the screen appear dim when you wake it up via the power button, hard pressing the home button to wake, or using your fingerprint scanner to turn on and unlock your device or a combination of those listed?
I would try safe mode.
You can boot into safe mode by following the below instructions:
1. Power off your device in question
2. Press and hold the power button to turn on the phone
3. When the Samsung logo disappears, release the power key and press and hold the volume down key
4. Continue holding the volume down key until the phone has finished restarting
5. You should now be in safe mode and can verify by looking in the bottom left of the screen for text that states you're in safe mode
After you have successfully booted into safe mode you need to allow your screen to turn off manually, automatically, or both(whichever results in a dim screen when normally booted up) when testing the below steps.
Turn your screen on via the power button and see if the issue remains.
Turn your screen on via the hard press to wake home button (not sure if this is available from safe mode, but worth a try) and see if the issue remains.
Turn your screen on via the fingerprint sensor (not sure if this works from safe mode either) and see if the issue remains.
If all successfully turn on the screen with normal brightness then I would say it's more than likely NOT a hardware issue. If one or the other does not produce normal screen brightness then it's more than likely hardware. If all result in a dim screen then it could be either hardware or corrupt software.
Click to expand...
Click to collapse
The problem is reproduced irregardless of the method used to put the phone to sleep. I will give it a try in safe mode tonight. I also wanted to add that randomly the screen will power on normally but never on the first wake attempt.
[email protected] said:
The problem is reproduced irregardless of the method used to put the phone to sleep. I will give it a try in safe mode tonight. I also wanted to add that randomly the screen will power on normally but never on the first wake attempt.
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Click to collapse
Let me know the results of safe mode once you have tried that.
Outbreak444 said:
Let me know the results of safe mode once you have tried that.
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Click to collapse
It still reproduces the problem in safe mode. i tried to wake it with the power button, home buttonand the fingerprint sensor... also under forced sleep mode and letting it time out itself.
[email protected] said:
It still reproduces the problem in safe mode. i tried to wake it with the power button, home buttonand the fingerprint sensor... also under forced sleep mode and letting it time out itself.
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Click to collapse
At this point, it's more than likely hardware but because it's intermittent you could try using Odin to flash firmware. I would advise you to look to the appropriate forum for instructions. And as always, if you have the ability then backup the data you wish to keep, do it prior to flashing the software.
Outbreak444 said:
At this point, it's more than likely hardware but because it's intermittent you could try using Odin to flash firmware. I would advise you to look to the appropriate forum for instructions. And as always, if you have the ability then backup the data you wish to keep, do it prior to flashing the software.
Click to expand...
Click to collapse
Well I figured it out. there was damage to the sensor that determines how light or dark it is. If I cover the top part of the screen with my finger then wake the device, it comes on every time. I hope this helps other people out in the future.
[email protected] said:
Well I figured it out. there was damage to the sensor that determines how light or dark it is. If I cover the top part of the screen with my finger then wake the device, it comes on every time. I hope this helps other people out in the future.
Click to expand...
Click to collapse
Try this then:
Under display settings turn off "Block accidental touches"
See if that results in not having to block your sensor every time.
**Edit**
By the way, glad you figured it out.