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Wake Up / Display Issue Help

Hi,
So basically there's been times (much more frequent over the past days) where I press the power button to wake the device, but nothing on the screen displays (it just remains black). However, when I touch the screen (i.e. at the lock ring) the device vibrates so the device is technichally on, but nothing is displayed on screen?
How do I fix this problem? I've read about others experiencing similar problems, but is there a fix?
Help would be greatly appreciated!
Thanks

Has been happening to me too, but only when I turn the screen off with Snapchat open. Is it happening when you leave an app open?

stolenphot0 said:
Has been happening to me too, but only when I turn the screen off with Snapchat open. Is it happening when you leave an app open?
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Hmm I have snapchat installed too, so maybe that's the problem? Yes, sometimes I'll leave an app open like whatsapp or snapchat

Black screen & no recovery!!!!

Hi all !!! Sorry for my English but I need your help
I commented what is happening with my phone N5 (which for good and evil is always stock without root or anything, with corresponding OTA updates.)
1- Yesterday afternoon at lunchtime while reading a book in playbooks, I notice that suddenly disappears one line and then appeared intermittently. I close the app and noticed the same thing happening on the screen menu. I shut down the cell and turn on again and I thought it must be an application be kidding. But still does.
2 Also yesterday I happened to change the security on the phone screen. After a while of normal operation, try to turn it on the screen with the button, nothing, the screen goes "black", with light and retrolight turned on but no picture no nothing .
Called the cell to see if it works or is turned off and the phone rings but the screen nothing. Try turning it off and on again by holding the on / off / lock button and the phone restarts, but the screen nothing. In one such attempt to do the above it is seen that managed to turn it off. And I get it on and do a normal boot, except that the picture of my screen is changed to the original. Change the lock screen which was previously using (slip). And it seemed that out or some conflict with the lock. In one of those again pressed the ON / OFF / lock as would normally and it starts all over again.
After I magically back to life, I want to make a full wipe as I think it should be an app that is doing some conflict or something. BUT ....
3I turn off the phone and then press the keys VOLUME UP / DOWN and ON / OFF is normally off, squeezed the first screen with the options but options RECOVERY / BOOTLOADER appears in red I choose RECOVERY give the ok with the key and .... andriod robot appears with the legend below that says something (I do not remember well) without or without controls options appears. So its seems thatI dont have recovery.
After that keep pressing the key ON / OFF and the phone turns off and / or reboot normally. All this I did it again to see if the error reappears and looks that I do not have recovery.
The failure of the screen is increasing. I dont know if they are separate problems or is it all the same problem.
Sorry if I was too long but I need the help of you.
UPDATE Now it seems that the screen died, since I do not achieve to turn it on as before, the light and the retrolight its ok. The phone receives calls and notifications but the screen stills black.
Thanks all.
Matias M 73

the android laying on its back IS the atock recovery.

simms22 said:
the android laying on its back IS the atock recovery.
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thank you simms22 but I need to fix or understand what happend with the screen first.
:good::good:

Matias M 73 said:
thank you simms22 but I need to fix or understand what happend with the screen first.
:good::good:
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sometimes things just "derp". itll happen more often if you dont reboot your phone often. also, your phone will be a little bit more responsive if it gets reboot once a day or two.

RMA or fastboot it back to stock, if the screen doesnt turn on afterwards then it looks like a hardware issue, open device and reconnect the display.

republicano said:
RMA or fastboot it back to stock, if the screen doesnt turn on afterwards then it looks like a hardware issue, open device and reconnect the display.
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Thank you Republicano!!
I think too that its a hardware issue. I already see on you tube problems like mine.
Thanks again!!

Help - My new SM-G930W8 S7 hangs on wake

Now this doesn't happen all the time every time, but usually around a notification and the screen is off, I go to hit a button to turn on the phone and it doesn't respond but the touch-keys are backlit. If Always-on Display is on, the screen is black regardless, not even showing the time or notifications. The only fix is waiting ~10 seconds for the phone to respond, which in some cases can be the difference between a missed call.
Now, seeing Always On Display off like that while it should be on made me think back to when I saw some sort of Nougat optimization setting that allowed me to select Always On Display, and as far as I remember, I did. That makes me think this process is killing AoD and it is taking that long to start back up, where the phone won't unlock until AoD (is back on and) can confirm that it's trying to wake up out of that state.
However, I don't believe this is the issue. I have turned off AoD and the issue still happened directly afterward, after a Messenger notification. This is stock firmware, however it is not factory firmware. I believe I downloaded it from Sam-Mobile, and they had the 7.0 Nougat upgrade that I would have gotten OTA with the factory firmware anyway.
Somehow I don't think it's the flashed firmware that is the problem, however please let me know if that's a possibility.
While the phone (or whatever) is hanging, I can still hold down the power button and I will feel haptic feedback as if the power menu has opened, and when the phone responds the power menu will be open, so the phone does still receive input. It just doesn't seem to act upon it or wake the screen properly. Is this perhaps merely a known Nougat bug or is it a glitch with my flashed stock firmware?
I'm sorry I don't have much more information. I do have Greenify, but I don't think that can or is set to disrupt anything that would affect the phone waking, or that would hang the OS, homescreen or whatever it is.
I haven't done other troubleshooting because I don't know what direction to attack this from, and that is why I have come here.
Help please!
Thanks in advance. :good:

UPDATE: It seems to happen directly after my screen shuts off from being on. So, if a notification wakes my phone but I don't interact with it in time and the screen goes off, when I press the power button it won't respond for ~10-15s. That's all I've really noticed... Anyone else have this problem??

BUMP.
Also, the same thing happens if I press the power button on my phone (by accident) and then go to turn it back on almost immediately - it won't respond for a while.

Cleared cache from recovery?
Got any settings enabled like "Keep screen off" which stops the screen coming on in your pocket, try disabling it in case that's causing it
Different gestures, disable them all in case they're messing with it
Last resort, factory reset

*Detection* said:
Cleared cache from recovery?
Got any settings enabled like "Keep screen off" which stops the screen coming on in your pocket, try disabling it in case that's causing it
Different gestures, disable them all in case they're messing with it
Last resort, factory reset
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Won't be factory resetting unless I plan to root or something. I'll fiddle with the keep screen off setting that I do have on, and I highly doubt gestures would affect it but regardless I haven't enabled or used any. Thanks for the reply.

So the "Keep screen off" setting didn't affect anything. I turned Always On Display back on and I see the same issues. However, now sometimes I notice when I lock my screen or it shuts off, sometimes the AOD will appear and then quickly disappear, and stay in this hanging state for 10-15s. Then, if I haven't touched it during that time, the AOD will reappear. Any ideas? :/

So nobody else has this issue? This is still a problem, even if I press the power button and sometimes I'll want to turn it back on again as I just remember something to do before putting the phone away, it hangs on black for too long to be useful in that moment. The only potential solution is a factory reset?

Even if I lock the screen... If I try to turn it back on too soon, and I think it's specific timing... I have to wait 10-20 seconds. Sounds and vibrations still work.

UPDATE: This is still an issue. I've noticed a few more things, it does really seem like timing and as if there's some function in my phone literally not allowing me to turn on my screen - and I have never timed it but I think pressing buttons (power button) makes it take longer before it will respond again.

Kilva said:
UPDATE: This is still an issue. I've noticed a few more things, it does really seem like timing and as if there's some function in my phone literally not allowing me to turn on my screen - and I have never timed it but I think pressing buttons (power button) makes it take longer before it will respond again.
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This happens for me also as a point of interest.
I am hoping that O solves it, since the monthly updates have never helped.

I haven't had this happen since upgrading to Oreo a week ago, so far so good!

screen stop turning off

I noticed that after using the phone for a few hours, the screen will stay on unless I specifically hit the power button to turn it off. The screen off time is set to 15 seconds.
If I reboot it, it will go back to normal, i.e. turning the screen off by itself.
Any one experience this? Some app bug? How to fix it?

Hmmm. Is "Smart Stay" on or off? Do you have Dev Options enabled? If so, is always on while charging option on? All I can think atm.
Sent from my SM-G955U using Tapatalk

tedlin said:
I noticed that after using the phone for a few hours, the screen will stay on unless I specifically hit the power button to turn it off. The screen off time is set to 15 seconds.
If I reboot it, it will go back to normal, i.e. turning the screen off by itself.
Any one experience this? Some app bug? How to fix it?
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Have you disbled any services or packages with Package Disabler Pro?

I don't have any of these mentioned issue, and I am still trying to pin point which app is the trouble maker.
Call Samsung support, and they said if I have bluetooth device as "trusted" home/location, they have seen such issue, and want me to turn off these "home" indicator Bluetooth connection.
I effectively turned off the Bluetooth wireless, and this afternoon, after a close to 2 hours meeting and was irritated to find out the screen has been on all the time.
I am going to find a good startup manager and disable APP one by one to see which is the bad boy.
thanks

Dimming and screen shut off when on call

Can't for some reason find an option anywhere on the phone to stop this from happening. Every time I'm on a call after about 10 seconds the screen will dim and a few seconds later goes to black. Can tap on screen 2x to wake it up again but I don't want this to ever happen. Not connected to full device shut down that I have turned up to 5 mins so has nothing to do with that setting. Can anyone assist and help me stop this form happening all the time? Many thanks!

jasonrak said:
Can't for some reason find an option anywhere on the phone to stop this from happening. Every time I'm on a call after about 10 seconds the screen will dim and a few seconds later goes to black. Can tap on screen 2x to wake it up again but I don't want this to ever happen. Not connected to full device shut down that I have turned up to 5 mins so has nothing to do with that setting. Can anyone assist and help me stop this form happening all the time? Many thanks!
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Go to Settings/ Accessibility/ Screen reader/ Under Voice Assistant tap settings then scroll down to Quick Menu, tap it, then look for Dark Screen toggle. Click this setting off.. Let me know if that works for you.

MrMike2182 said:
Go to Settings/ Accessibility/ Screen reader/ Under Voice Assistant tap settings then scroll down to Quick Menu, tap it, then look for Dark Screen toggle. Click this setting off.. Let me know if that works for you.
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Thank you! I turned it off. Next time I'm on a call I'll see if it did the trick and post back.

MrMike2182 said:
Go to Settings/ Accessibility/ Screen reader/ Under Voice Assistant tap settings then scroll down to Quick Menu, tap it, then look for Dark Screen toggle. Click this setting off.. Let me know if that works for you.
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No this didnt stop screen from dimming and turning black

jasonrak said:
No this didnt stop screen from dimming and turning black
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Not sure then because that was the only thing I could find.. Maybe it's a setting that we don't have control over.. I do know that the screen is supposed to shut off when it's close to your face and the reason being is so that your face isn't pressing on stuff and making the phone do things you don't want it to be doing.. My moms face sure does seem to disable a lot of stuff like fast charging and even turning the screen brightness so low that she thought it was broken haha..

MrMike2182 said:
Not sure then because that was the only thing I could find.. Maybe it's a setting that we don't have control over.. I do know that the screen is supposed to shut off when it's close to your face and the reason being is so that your face isn't pressing on stuff and making the phone do things you don't want it to be doing.. My moms face sure does seem to disable a lot of stuff like fast charging and even turning the screen brightness so low that she thought it was broken haha..
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HA. No, phone is on a desk, not near my face. But yeah most phones nowadays do that. Thanks for trying tho.
Anyone else with any thoughts?

Tried replicating the problem on my end. I called someone, enabled speakerphone and put the phone on the table.
The screen indeed turned dim after 10 seconds and turned black afterwards. It bypassed my screen timeout setting which is 5 minutes. The phone app is in the foreground. Double tapping the screen wakes it up.
I minimized the phone app; the homescreen is now in the foreground. It adhered to the 5 minutes screen timeout setting.
I guess the temporary workaround is that after you answer the call, exit out of the phone app.
Sent from my SM-N950F using Tapatalk

jasonrak said:
Can't for some reason find an option anywhere on the phone to stop this from happening. Every time I'm on a call after about 10 seconds the screen will dim and a few seconds later goes to black. Can tap on screen 2x to wake it up again but I don't want this to ever happen. Not connected to full device shut down that I have turned up to 5 mins so has nothing to do with that setting. Can anyone assist and help me stop this form happening all the time? Many thanks!
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Hi. I had the same problem and found the solution using third party application: Screen On Call from Google Playstore: https://play.google.com/store/apps/details?id=com.vorlan.screenoncall.free
It is compatible with Samsung dialer. On the top later you have small button to prevent screen going dark or to disable it. Proximity sensor is working without problem when you hold the phone to the ear.

lukaslake2626 said:
Hi. I had the same problem and found the solution using third party application: Screen On Call from Google Playstore: https://play.google.com/store/apps/details?id=com.vorlan.screenoncall.free
It is compatible with Samsung dialer. On the top later you have small button to prevent screen going dark or to disable it. Proximity sensor is working without problem when you hold the phone to the ear.
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Yaaawhoooooooo!!! This totally works. I have been an Android user for years and could find an answer for this nowhere. Users, be sure to turn on "Appear on top".
Thank you. Life changing.