Dark room, black screen issue. - One (M7) Q&A, Help & Troubleshooting

I'm having this issue w my 3 week old One. Besides the purple red hue, I now have an issue where if I'm in a dark room such as my bedroom either at night, or in morn if I press power button the home and back buttons light, but screen stays black. I can hit button 10x and screen may flash for split second but won't turn on. If I turn room light on everything works fine.also if I disable auto brightness it also seems to work.
I am within my return window since I got it during holidays but build wise the phone is ok, and I've heard of others having camera, speaker, sensor issues w return phones. The phone was built in aug, I bought it from vz store. Should I try to exchange, or would it just be better to send to HTC for repairs?.
Ant suggestions to fix sensor?, I can wait for camera fix but I do use phone in dark.

mushmouth said:
I'm having this issue w my 3 week old One. Besides the purple red hue, I now have an issue where if I'm in a dark room such as my bedroom either at night, or in morn if I press power button the home and back buttons light, but screen stays black. I can hit button 10x and screen may flash for split second but won't turn on. If I turn room light on everything works fine.also if I disable auto brightness it also seems to work.
I am within my return window since I got it during holidays but build wise the phone is ok, and I've heard of others having camera, speaker, sensor issues w return phones. The phone was built in aug, I bought it from vz store. Should I try to exchange, or would it just be better to send to HTC for repairs?.
Ant suggestions to fix sensor?, I can wait for camera fix but I do use phone in dark.
Click to expand...
Click to collapse
send them a mail, phone them and they'll tell you what to do. I'd recommand to phone the shop where you bought it. If you didn't root it you shouldn't have any issues. Otherwise let it escalate and phone HTC.

Related

incall screen off app..like iphone????

the iphone switches the screen off when it goes to your head then turns back on when u take it away. is there a simple app for this??
Phone lacks the proximity sensor the iPhone has. Fortunately, it has a plethora of other useful features (a keyboard, picture messages, etc.)
pmow said:
Phone lacks the proximity sensor the iPhone has. Fortunately, it has a plethora of other useful features (a keyboard, picture messages, etc.)
Click to expand...
Click to collapse
To add on to that the phone also goes to sleep when the call is connected and its just a matter of pressing the power button to get it to wake up again.
mine doesnt
Well mine has always went black when it goes up to my ear, but it would be nice if it came back on when removed from my ear.. although we dont have a proximity sensor, i dont see why it coulnt work with the gsensor/accelerometer. all it would have to do is go on when the phone is put back in the upright position
jok3sta said:
Well mine has always went black when it goes up to my ear, but it would be nice if it came back on when removed from my ear.. although we dont have a proximity sensor, i dont see why it coulnt work with the gsensor/accelerometer. all it would have to do is go on when the phone is put back in the upright position
Click to expand...
Click to collapse
is there a setting for this?
is it possible to in fact use the light sensor? it obviously recognizes something when it turns off, maybe write up something saying "when dark below 'x' threshold, turn off screen. when bright above threshold, screen on. you would have to press the screen somewhat snugly to your face, but it sure beats nothing.
vader165 said:
is it possible to in fact use the light sensor? it obviously recognizes something when it turns off, maybe write up something saying "when dark below 'x' threshold, turn off screen. when bright above threshold, screen on. you would have to press the screen somewhat snugly to your face, but it sure beats nothing.
Click to expand...
Click to collapse
It should be possible, but no one has done anything with the light sensor of turning it back on. I'm thinking that the polling of the light sensor turns off when the screen is in standby. If we can somehow get that to work in only incall (so it doesn't have battery issues), then it should work, when it goes from little light to more light, it should act as close to phone to far away from phone.
One could even use 2 sensors for it? Maybe the Light-Sensor and the G-Sensor. So when u bring the phone to your ear the light gets dark an the position upright. (the phone turns the screen off) And as soon as it get brighter and the position is change to normal (whatever that is ) it turns back on.
I reall would love to write something like that. But so far i have no clue of writing anything for that phone. Does anyone know a tutorial for writing software for a pda?
Thx
Come on guys this would be soooo great
jok3sta said:
Well mine has always went black when it goes up to my ear, but it would be nice if it came back on when removed from my ear.. although we dont have a proximity sensor, i dont see why it coulnt work with the gsensor/accelerometer. all it would have to do is go on when the phone is put back in the upright position
Click to expand...
Click to collapse
It doesn't actually do that when you put it up to your ear. It's a WinMo setting to put the phone in standby after a call is launched or received. What you preceive as behavior is actually a timing thing.
The guy from pocket shield managed to combine these two sensors, g-sensor and light sensor, to work together as locking/unlocking behavior.
maybe some g-sensor and lumos code can handle this thing... and create one cab solution here...
if some one could write this code it would be an AWESOME addition to the Phone. I would personaly love this as im sure many others would.
Thanks.
this is a bit late, but here's a cool app that i've found...
http://forum.xda-developers.com/showthread.php?t=488991
no its not too late. if people look around they would have found it.
aonavy said:
the iphone switches the screen off when it goes to your head then turns back on when u take it away. is there a simple app for this??
Click to expand...
Click to collapse
searching is your friend
http://forum.xda-developers.com/showthread.php?t=488991
warri said:
searching is your friend
http://forum.xda-developers.com/showthread.php?t=488991
Click to expand...
Click to collapse
reading is your friend..look at the dates posted

LCD burn in (image persistence)

Hey all,
I am having troubles with the LCD on my touch diamond, i have had it for quite a while now.
In January this year, I started to notice that the soft button bar at the bottom of the screen was flickering, just the soft bar. I would turn off the screen for about half a day and it would go away, then it would happen again in a few days.
This happened for a few weeks, then it just stopped.
Now its back again, where I can see "Now Playing" faintly, as well as what is actually there ("Contacts"), but i don't have WMP open. and the whole bar flickers slightly. i just have to turn the screen of for a minute and it dissapears.
I only had WMP open for about 5 minutes..
I have the same issue. Here's what I did to (temporarily, I assume) fix the problem.
I made a white picture in MS Paint that was 640x480 pixels and put it on my phone, then set the screen to maximum brightness and left the screen on with that picture full screen. It got rid of the burnt in image.
I think the problem I had is that in my power settings, I had it to where the screen never turns off when plugged in. If I got a text message or e-mail after I plugged it in and went to bed, the screen would turn on and never turn off until morning. I've changed my power settings so even when plugged in, it doesn't stay on for more than a minute. I hope that fixes it.
mafiamike said:
I have the same issue. Here's what I did to (temporarily, I assume) fix the problem.
I made a white picture in MS Paint that was 640x480 pixels and put it on my phone, then set the screen to maximum brightness and left the screen on with that picture full screen. It got rid of the burnt in image.
I think the problem I had is that in my power settings, I had it to where the screen never turns off when plugged in. If I got a text message or e-mail after I plugged it in and went to bed, the screen would turn on and never turn off until morning. I've changed my power settings so even when plugged in, it doesn't stay on for more than a minute. I hope that fixes it.
Click to expand...
Click to collapse
I too have the same problem and i did what you said but its not working, Any other suggestion....
same here... i removed the battery for 4 hours (at night) . got up and everything went back to normal . happen once a few months ago .
i would try it tonight and see and will report back. AND i have also found another issue with my diamond of newtons ring. Now am really getting pised at htc pathetic quality phone
I'm experiencing the same problem as well.. it come and goes and I've somehow learnt to ignore it. So far it just disappears after a few hours of use.
Hey its thr with many people, A quick remedy. Increase the brightness level to max....wait fr a few seconds thn put it back to normal. Wont prevent it permanently...but yes will hold it off for a while
Happens to my Diamond too. I am now trying different versions of HSPL to see if the problem is related to it.

Screen going black randomly on Z1

I've gotten my Xperia z1 black Friday. Since then the screen has gone black on me about 6 times already... Mind u only had it 1 week.
The screen will go black with no image showing but the black light stays on. Pressing power or any button does nothing. I have to press the red power button near the sim card to have it reset.
Today I its done it 4 times in a row. I did notice that the screen flickered a few times on the image then it went to black image with back light on.
I rebooted it. It showed Sony then just the black screen with no image. I rest the phone again and still nothing. I brought it to the store I bought it from and when I went to show him the back light on but no image and no response from the power it worked Ok. Besides when I turned it off the back light stayed on and the phone was hot.
He turned on the optimized back light option as I turned it off to see if that caused the issues. Now after leaving the store as I had him order a replacement I went to turn my phone on after 20min and I got no back light but the image was there... Extremely hard to see I must add. I went in the settings and turned off the auto dimmer option and my screen was fine since then.
Anyone run into this issue?
I hope if I replace this one for another I won't have the same issue again as this phone is very powerful but this issue is a pain!
Sent from my C6906 using xda app-developers app
andyid said:
I've gotten my Xperia z1 black Friday. Since then the screen has gone black on me about 6 times already... Mind u only had it 1 week.
The screen will go black with no image showing but the black light stays on. Pressing power or any button does nothing. I have to press the red power button near the sim card to have it reset.
Today I its done it 4 times in a row. I did notice that the screen flickered a few times on the image then it went to black image with back light on.
I rebooted it. It showed Sony then just the black screen with no image. I rest the phone again and still nothing. I brought it to the store I bought it from and when I went to show him the back light on but no image and no response from the power it worked Ok. Besides when I turned it off the back light stayed on and the phone was hot.
He turned on the optimized back light option as I turned it off to see if that caused the issues. Now after leaving the store as I had him order a replacement I went to turn my phone on after 20min and I got no back light but the image was there... Extremely hard to see I must add. I went in the settings and turned off the auto dimmer option and my screen was fine since then.
Anyone run into this issue?
I hope if I replace this one for another I won't have the same issue again as this phone is very powerful but this issue is a pain!
Sent from my C6906 using xda app-developers app
Click to expand...
Click to collapse
You will have exactly the same issue, it's a known Xperia bug. You would know it if you goolde it first!
Go to sony forums and that issue is a hot topic, same with the touchscreen issue. I'll never buy a ****ty xperia again.
Yes, this is an Android Bug, not the Device. Before Adroid will work well on the device have to past weeks. I had no backlight but the phone was working because when I was touching the screen he also vibrate because that option was abilitate. I had to reboot the phone few times too and disabilitate Adapt to lighting condition, for me that was making black screen. So I did this few times, abilitate and disabilitate and now no matter what is running well even with all the options abilitate. So I will give it time.
Thanks guys.
I have searched on Google and other sources but the way they describe it is a bit different then what I was seeing. Plus many stated they where not able to get it working till they did the power + vol up and down. I just pushed the reset button inside the sim cover and I was fine.
So far by disabling the auto screen brightness I have not had this issue again.
Hope this is more software then hardware issue and can be fixed by next update. I'm on firmware: 14.1.G1.534.
Bell has not pushed the new update people are talking about when I did searches for it.
Could it be bell is waiting for the 4.4 update instead of pushing a small jellybean update?
Hope it's fixable. I love this phone way more than my slow galaxy note I had before.
andyid said:
...the auto screen brightness....
Click to expand...
Click to collapse
"Adapt to lighting condition" and "Auto Screen Brightness" is the same thing.
Yes I know.. I just did not know the name at the time... That was the first name that came to mind...
So far with the Adapt to lighting condition off, My phone has not acted in anyway described above.
Just wanted to give heads up and report of my findings even thought others may have found it also.
Update your phone to 2.257 firmware, it seems the problem caused by "optimized backlight" thing, since on the 257 firmware the optimized backlight check was gone. I only used the 1.534 firmware for a few hours and flashed 2.257 via flashtool and i never experienced any problem until now for like a month and half
Sent from my C6903 using Tapatalk
My provider, Bell Canada states that the most current firmware is X.X.1.543...
I used sony's update tool and it also stated I had most recent update
This flash tool u are talking about... It states an unlocked device. Do they mean that the device is not carrier locked?
I believe mine is Bell Canada locked but there are no branding on the phone.
Also the software shows a list of compatible phones but the z1 is not in the list...
I think I'm sol if mine is not bootloader unlocked correct?
* Update *
I was able to flash stock unbranded android 4.2.2 and then I was able to update ota to 4.3!
Phone runs great now and I no longer have the screen going black issue when I have the auto screen brightness on!
Phone is super smooth!
Thanks for the tips and help guys!
Can't wait to see the 4.4 when it comes out next yr!
Happy new year to all of you!
Oh and my bootloader is still locked. I found the diy to do it with out unlocking my bootloader.
My phone was rooted when I changed to the unbranded firmware.
It's no longer rooted on the now 4.3

How to fix screen backlight on HTC One m7

I haven't seen this posted anywhere so I figured I would post for anyone having a similar issue with their One.
Recently my phones backlight stopped working. It would not work at boot or in the ROM. I tried flashing to stock and tried optimizing the proximity sensor, but no luck. It was clearly a hardware problem.
Not seeing any solution to this issue other than people saying it is the screen or the motherboard I decided to order a new screen.
Well installed the new screen, still no backlight. I was about to give up on it and just buy another phone, but I got the feeling that the light sensor may still be my issue. The backlight on the capacitive buttons would not turn on unless I helded down the power button to force shutdown. This meant the backlights for the buttons at least worked and something else in the phone was preventing them from turning on.
I decided to remove the light sensor from the daughterboard (opposite the power button connector). Booted it back up, and the screen came right on. The phone works great without it, other than auto brightness. The screen still turns off when against face during calls.
So long story short if your LCD and button backlights aren't working don't order an LCD or rule your phone dead right away. Open it up and take out the light sensor, it could be the culprit.
I'm going to order a new sensor and can update with results after installing if anyone is interested. In the meantime I'm using the phone without it, no hiccups so far.
htc one screen backlight issue
nsodmordex said:
I haven't seen this posted anywhere so I figured I would post for anyone having a similar issue with their One.
Recently my phones backlight stopped working. It would not work at boot or in the ROM. I tried flashing to stock and tried optimizing the proximity sensor, but no luck. It was clearly a hardware problem.
Not seeing any solution to this issue other than people saying it is the screen or the motherboard I decided to order a new screen.
Well installed the new screen, still no backlight. I was about to give up on it and just buy another phone, but I got the feeling that the light sensor may still be my issue. The backlight on the capacitive buttons would not turn on unless I helded down the power button to force shutdown. This meant the backlights for the buttons at least worked and something else in the phone was preventing them from turning on.
I decided to remove the light sensor from the daughterboard (opposite the power button connector). Booted it back up, and the screen came right on. The phone works great without it, other than auto brightness. The screen still turns off when against face during calls.
So long story short if your LCD and button backlights aren't working don't order an LCD or rule your phone dead right away. Open it up and take out the light sensor, it could be the culprit.
I'm going to order a new sensor and can update with results after installing if anyone is interested. In the meantime I'm using the phone without it, no hiccups so far.
Click to expand...
Click to collapse
hey
i'm having the same problem are you sure that it is a hardware issue and not the software issue my h/w buttons doesn't light at all and my screen stays black for some time after unlocking the phone it comes back but the brightness is too low
any suggestions would be appriciated
Mine was a hardware issue, the backlight did not turn on at all, even on the htc start screen. The capacitive buttons would only flash when holding down the power button. If ypurs is intermittent and your phone is rooted you cantry insralling an app fhat alows you to change the proximity settings, sorry, cant remember the name of the app i tried. If the app can't detect the sensor it is likely broken like mine was. If that doesnt work try a different rom.
If neither of those help it is likely a hardware issue.
i used the app both light senor and proximity sensor are working fine
any other tips that i can try
kingkri said:
i used the app both light senor and proximity sensor are working fine
any other tips that i can try
Click to expand...
Click to collapse
Sorry for taking so long to respond, just noticed your reply.
Did you ever get it working? If a different rom did not solve your issue maybe your sensor is just dirty. You could try cleaning it with a can of compressed air. Not sure how effective it would be, but it may help.
Hi @nsodmordex, my HTC One M7 is in the same situation as you describe, no backlight, but working. I'm going to try your suggestion of removing the light sensor, but I'm unable to find it, I'm not sure where the light sensor is.
Please, can you tell me which component is the light sensor? This is a photo of the daughter board:
htt ps://d3nevzfk7ii3be.cloudfront.net/igi/ALPJIMWqGsLwul5Y.huge
Thanks!
Found it... it's located behind the daughter board, at the two little holes of the front cover of the phone. I have removed it but no luck, the screen continues black, but the mobile is working good.
it seems a screen related problem, I'm going to try to change the screen and see if it comes to life again.
Drain battery
Hi all,
I also have this problem and found out that if I drain the battery completely and wait about 1 hour, it turns back on when I put the charger in the phone, if the screen doesn't turn on, drain and wait longer, if it does turn back on then power the phone. Do not wait till it has a little bit power because than it fails again and you must drain and wait again.
It works for me and I will make a video of it and post a link later.
Hope it works for you all!
Tip: use a led flashlight to see what's on the display
Ps. Stock m7
Whats the definitive solution for no backlight screen?
jvpag said:
Whats the definitive solution for no backlight screen?
Click to expand...
Click to collapse
Clean / replace the lightsensor
Dippie83 said:
Clean / replace the lightsensor
Click to expand...
Click to collapse
I had removed it and the backlight isn,t working
jvpag said:
I had removed it and the backlight isn,t working
Click to expand...
Click to collapse
Than the lightsensor is broken, are the contacts on the back of the sensor 100% clean, in my case it was dust that created the error.
Is the display not broken?
Dippie83 said:
Than the lightsensor is broken, are the contacts on the back of the sensor 100% clean, in my case it was dust that created the error.
Is the display not broken?
Click to expand...
Click to collapse
The display is ok because I can see what is on the phone with the LED flash of a Galaxy S2 so I think that the display is not broken.
The backlight doesn´t turn on with the light sensor and without it either. But i can remember that the last time that it worked the Autobrightness was fine
Edit: I tried rebooting on fastboot and recovery via ADB and the screen is without backlight too
PD: Sorry for my English
jvpag said:
The display is ok because I can see what is on the phone with the LED flash of a Galaxy S2 so I think that the display is not broken.
The backlight doesn´t turn on with the light sensor and without it either. But i can remember that the last time that it worked the Autobrightness was fine
Edit: I tried rebooting on fastboot and recovery via ADB and the screen is without backlight too
PD: Sorry for my English
Click to expand...
Click to collapse
In my case, if it worked it was ok also the autobrightness.
I think the sensor is broken and if you replace it the backlight comes back on (sensor is +- 10€ in holland)
Just give it shot
Have you tried the battery drain?
Hehe my english is also not very good
Dippie83 said:
In my case, if it worked it was ok also the autobrightness.
I think the sensor is broken and if you replace it the backlight comes back on (sensor is +- 10€ in holland)
Just give it shot
Have you tried the battery drain?
Hehe my english is also not very good
Click to expand...
Click to collapse
But as I read, if I remove the sensor and turn on the phone without it, will it work?
In this moment the phone has 0% battery and if I plug the charger i can see the red light and if i use a flashlight, i can see "the battery with the lightning" on the screen
jvpag said:
But as I read, if I remove the sensor and turn on the phone without it, will it work?
In this moment the phone has 0% battery and if I plug the charger i can see the red light and if i use a flashlight, i can see "the battery with the lightning" on the screen
Click to expand...
Click to collapse
No i dont think thats gonna work, push the power button (whitout charger) every time till the battery is really empty, than wait an hour.
If you connect the charger and the screen will not turn on, wait longer. a night is even better.
If the screens comes on then turn direct the phone on dont let it dim itself or else you can wait again.
This worked in my case but my lightsensor was dirty and after a cleanup it worked normal and it stil works.
Dippie83 said:
No i dont think thats gonna work, push the power button (whitout charger) every time till the battery is really empty, than wait an hour.
If you connect the charger and the screen will not turn on, wait longer. a night is even better.
If the screens comes on then turn direct the phone on dont let it dim itself or else you can wait again.
This worked in my case but my lightsensor was dirty and after a cleanup it worked normal and it stil works.
Click to expand...
Click to collapse
Okay, thanks, it worked once, but with the phone turned on and the backlight working, if the screen turns off, the backlight runs away again.
can you repeat point by point what i need to do?
when you say "drain" the battery, you mean leaving the phone on till it turns off? then what should i do? wait an hour and plug the charger to see if it works right? okay, and later if the phone turns on what i need to do?
jvpag said:
Okay, thanks, it worked once, but with the phone turned on and the backlight working, if the screen turns off, the backlight runs away again.
can you repeat point by point what i need to do?
when you say "drain" the battery, you mean leaving the phone on till it turns off? then what should i do? wait an hour and plug the charger to see if it works right? okay, and later if the phone turns on what i need to do?
Click to expand...
Click to collapse
By 'drain the battery' i mean continuously turning the phone on with a empty battery till it does nothing, not even vibrate.
It must be so empty that the phone not knows its a phone.
And yes if the screen comes on just power it on, thats it.
1 drain
2 wait
3 plug in charger
4 screen comes on
5 turn phone on
6 done
1 drain
2 wait
3 plug in charger
4 screen stays off
5 drain and wait longer
that are the steps that worked for me
Thanks @Dippie83 , it "worked" draining the battery and waiting forma a night to turn it on but when i turn on and i push the power button yo lock the screen, the backlight stops working
Any idea?

Weirdest black screen issue, tried everything ....

Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
I would say it's a warranty job, just tried turning my brightness to zero and you can still see the screen.
I did have a similar problem on an old note that had root and custom rom though but I had somehow set the volume rocker to control brightness and it had lowered itself to minimum in my pocket
KEVIN88GT said:
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
Click to expand...
Click to collapse
Try pressing and holding Volume down and power button for 5 to 7 seconds to force power off, then try to boot to download mode Volume Down + Bixby + Power button and see if the download mode screen shows......if not then probably a bad screen.
Sent from my God Mode 8
Tried it......nothing.....warranty job it is.... Bummed to have some refurnished phone in exchange for a Brand new 900 dollar phone just a few months back?
KEVIN88GT said:
Tried it......nothing.....warranty job it is.... Bummed to have some refurnished phone in exchange for a Brand new 900 dollar phone just a few months back?
Click to expand...
Click to collapse
Yeah that sucks, i can imagine..... i too hate the idea of refurbished units being swapped for warranty....bs, should be brand new unit!
Sent from my God Mode 8
so I had it replaced under warranty through T mobile. Refurb phone will come in today. One quesion. Should I let the Tmobile techs do the data/settings transfer from old phone to new one or just do everything myself from scratch (which will obviously take longer).
This happened to my phone twice for the past month or so. (both in Nougat and Oreo - Non rooted) Black screen but phone seems to be responding -- I can receive calls and notifications etc -- And force reboot doesn't fix it. I've also tried drainging the phone when it first happened to me but doesn't work. HOWEVER, it gets okay so randomly. Like I just left it for couple of hours and it just worked when I hit the power button.
I did tried bringing the device to Samsung but what they did is to just manually upgrade/reset the software in their end which I could have done in my part but I just let them do it. They told me to come back if it happens again which is kinda BS.
I can conveniently say this is a Hardware issue. I will wait for it to happen again on my phone and request for a replacement. Phone is 4 months old when it first happened.
I have the same issue with blank screen but phone is working.
It started couple of weeks after i dropped my phone on the ground. There is black dot on my screen and broken glass but phone was working ok and was still pretty usable. But then it started:
Display works fine but when i switch display of, lock the phone or display switched because of its timer it didn come switch on... But phone works, i can use it with blank (black) screen.
I had to do force restart so the display will turn on with samsung logo and booting screen, and keep on till another switch of.
I was trying every setting (but no hard reset) and then i found a little hack:
When you turn on the "Always On Display" (AOD) function you can let the screen switch off or do it manually, wait for 1-2 sec and always on display will come up to the screen. Then when you press home button or lock button screen will swtich on normally. YOu can type pin and use phone witch screen working. But when you try to unlock from "AOD" with your finger or your eyes it unlock but with screen black.
So i was using it like this. everytime you need to wait second untill AOD comes up, but it was working fine.
Problem nu 2 is that now it stop working, AOD is working but when i want to switch screen on from AOD it shows black screen and phone is working on blind.
So everytime after my screen goes black or to AOD i have to unlock the phone blindly and "Force restart" it and have to keep waiting until boot, and then have to never let phone to screen of.
Its not usuable.
¨
Now what do you think? Is it hardware problem or software problem? Because screen is working but randomly. The black dot of dead pixels on the screen is getting slightly bigger in time (about 1 year) but its like 1.5cm round. Maybe this cause the problem? And why hack with AOD was working for half a year and then stoped working? There wasnt any updates right before, but i tried to install some apps (non display related) so ill try to uninstall them.
Hawe you got any idea if i can repair it on my own even if i loose the waterproofability?
Or can it be replaced for free if i have a warranty? (I dont have insurance)
Thanks for your tips guys.
Reprocrastinator said:
I have the same issue with blank screen but phone is working.
It started couple of weeks after i dropped my phone on the ground. There is black dot on my screen and broken glass but phone was working ok and was still pretty usable. But then it started:
Display works fine but when i switch display of, lock the phone or display switched because of its timer it didn come switch on... But phone works, i can use it with blank (black) screen.
I had to do force restart so the display will turn on with samsung logo and booting screen, and keep on till another switch of.
I was trying every setting (but no hard reset) and then i found a little hack:
When you turn on the "Always On Display" (AOD) function you can let the screen switch off or do it manually, wait for 1-2 sec and always on display will come up to the screen. Then when you press home button or lock button screen will swtich on normally. YOu can type pin and use phone witch screen working. But when you try to unlock from "AOD" with your finger or your eyes it unlock but with screen black.
So i was using it like this. everytime you need to wait second untill AOD comes up, but it was working fine.
Problem nu 2 is that now it stop working, AOD is working but when i want to switch screen on from AOD it shows black screen and phone is working on blind.
So everytime after my screen goes black or to AOD i have to unlock the phone blindly and "Force restart" it and have to keep waiting until boot, and then have to never let phone to screen of.
Its not usuable.
¨
Now what do you think? Is it hardware problem or software problem? Because screen is working but randomly. The black dot of dead pixels on the screen is getting slightly bigger in time (about 1 year) but its like 1.5cm round. Maybe this cause the problem? And why hack with AOD was working for half a year and then stoped working? There wasnt any updates right before, but i tried to install some apps (non display related) so ill try to uninstall them.
Hawe you got any idea if i can repair it on my own even if i loose the waterproofability?
Or can it be replaced for free if i have a warranty? (I dont have insurance)
Thanks for your tips guys.
Click to expand...
Click to collapse
If you're under warranty it will likely be a free repair, unless they find other damage. Like moisture damage.
As far as fixing it yourself, it's just about as cheap to have Samsung do it than it is to buy the parts yourself. It's $229 for Samsung to do it, and you'll maintain the water resistance rating.
same has happened to me
KEVIN88GT said:
Non rooted, T mobile branded 3 month old note 8. No water damange, no drops etc.
Using chrome one miniute, set the phone down to watch a movie on my tablet, picked up the phone to check messages and boom. Screen is off. The phone works, I can even answer calls because I know where the answer button is on the screen, haptic feedback works, all indicator lights work. The phone screen remains off.
Tried a soft reset (tried hard reset too the best I could being I cant see the screen) and the phone seems to reset based on the vibration and indicator light patters but the screen remains off. It's as if a physical connection between the screen and the brains of the phone has been severed. Literaraly the weirdest thing that has happened to me in a decade of Android phone ownership.
Googled all the black screen issues with these phones and most of them are resolved with just a soft reset... some said that the phone is in it's lowest dimmed state and go to a dark room and i'll see it faintly and then can increase brightness... no luck...
Has anyone experienced this?
Click to expand...
Click to collapse
This has just happened to my note 8 too. I was about to update it and had started it. set my phone down and picked it up and phone screen is black but can hear the haptic feedback.
I can only see the lock screen and the notifications. Everytime I try to unlock my phone I only get to see a glimpse of the notescreen and then the screen turns black. Even when I try to go to camera through the lock screen the screen goes black too. When I charge my phone it heats up so I haven't really charged it as well. Has this also happened to anyone? It seems as if the phone's sensitivity still works in all places but when I unlock it the screen just goes black.
I also have problem of freezings and always rebooting. Tried soft and hard resets/factory reset. Still same problem. This phone has hardware issue. Do not buy.
I realize this thread is quite old but I have this exact same issue now. I have managed to discover some other information by playing around with various settings which are noted below. To begin with, I was able to used the AOD hack posted above for a while but it no longer works. The only way I can get my screen to come back is with a soft reset - but as soon as the screen times out or i turn it off, it goes black, with or without AOD enable. All the on screen buttons still work as well as the haptic feedback - I just can't see anything.
Now on to what I have found:
One thing I have found is if I turn off adaptive screen brightness and crank the brightness slider to the right, when it goes black I can faintly see some of the buttons - enough that I can turn the phone off or restart it from the power menu (If I switch the default setting to night that also helps to see the buttons a bit better). Also, if I enable night mode I can also see the brightness slider faintly but when I slide it left, it just makes the screen completely black and when I slide it right, it only returns it to the very faint brightness level.
So at this point I am stuck. To summarize the issue:
1. When the screen either times out or turns off, it is still "alive" but goes black. It will not return to normal brightness.
2. Turning off adaptive brightness and cranking brightness slider to right allows you to see faint buttons after screen times out but won't return to normal brightness.
3. Enabling night mode helps to see the faint buttons, in particular the brightness slider a bit better. However the screen still cannot return to normal brightness.
4. The only way to get the screen back to full brightness (albeit temporarily until the next timeout) is to turn off the phone or reset from the power menu; or soft reset holding volume down + power simultaneously.
Hopefully someone else has figured out a way to recover this. I am on Android 9 with Samsung UI 1.0
Phone is completely stock, never rooted and completely out of warranty.

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