[Q] Sudden screen black out but phone is on - Galaxy S I9000 General

I am having a problem with my Galaxy SI-9000 screen. It suddenly goes black and have to pull the battery to get back the screen. However when the screen is black the phone is still working because if I give a call the phone rings but the screen is black and can't see any thing? This started happening from yesterday, since then it has happened twice what may be the problem?
I am testing an application I have written(for battery use) and it is accessing the GPS and the MIC every one min.. can this have any relation with the sudden screen black outs?

Related

Screen flickering

hi!
I recently bought a xperia and noticed that the screen is flickering when you turn off the automatic adjustment and turn the screen to maximum. Is this normal or should i return it? its very innoying. It's the light in the bottom of the screen that flickers.
I would return it. Mine does not do this, so I wouldnt consider this "normal"
seems that you have a defective retroillumination led... return it
yeah, definately not normal - mine doesn't have this issue
I also recently received my X1. I also note that the light of my screen flickers but only with certain software. It vibrates on the left when loading windows, and on the black bar in touchflo3d between the start menu and the clock ... I can't see if it is a hardware problem and therefore if I should get the guarantee

Strange black screen problem in Defy

Hi!
I dropped my defy in 2 cm of water,everything was fine for 20 min, suddently my screen stop responding, i removed the battery, place it back turn on the sceen got quite dark. Yet I was still able to see things on screen. Then it slowly got darker and darker until it was completely black. After that I tried to push the power button but the screen didn't light up, only the 4 buttons were lit.
I noticed I was still able to unlock the screen or answer phonecalls sliding my finger from left to right on the correct area of the screen, although it remainded black all the time.
What can i do? do i have to replace the lcd?
Thanks

Is my LCD stuffed? :(

I have an N9005 that I bought second hand just under a year ago. It's running the Phronesis 4 ROM. About a week ago a one pixel wide bright pink line appeared intermittently down the right-hand side. It looks like this (only bright freaking pink): http://forums.androidcentral.com/at...-bright-line-being-shown-display-p1070045.jpg
Today I was playing Fallout Shelter (always makes my phone pretty warm and eats battery). 15% battery warning comes up so I take it to charge. I notice the screen doesn't turn on. There is a momentary flash of dim colour at the top, but otherwise the screen is completely black. I tried pushing the power button several times, but all it did was a momentary flash of dim colour at the top but still black each time.
I took the battery out for a bit, then put it on to charge. The on screen charging display did not appear (stayed black) but after a bit the LED lit up to indicate charging as it would after the screen display turns off. I left it for a while and eventually the screen started working again (99% charge when I checked). I was then able to boot like normal.
However a while later the screen would not turn on again (just the momentary dim flash of colour at the top before black). I didn't do anything with it in this time. It just sat in standby before I tried using it again. The back button and hamburger menu buttons are not seemingly lighting up either. But the led works fine with notifications. I tested calling my phone and it rings fine - if I slide accept the call where it is normally on the screen, I can accept calls and talk like normal. But the screen remains black. So clearly the digitizer works fine.
I have tried taking out the battery for a long period of time, taking the battery out and discharging the remaining power by holding the power button (5 minutes), I have tried taking the phone apart and cleaning the display connector with some isopropyl alcohol and firmly reattaching. Screen is still black.
Is this a problem with a malfunctioning LCD or could it be something like the GPU? I don't want to pay $150-$250 for a replacement screen assembly only to find that it's some other problem
Thanks in advance!
I would suggest to get a new device.
Keinbockwurst said:
I would suggest to get a new device.
Click to expand...
Click to collapse
I prefer to repair rather than replace unless I have absolutely no other choice, thanks.

A5 2016 sometimes won't wake up, screen flashes

Hi,
I have this phone for little over 2 years. For over 1 week now I'm experiencing my phone not being able to wake up when I use the power button/home button. Whenever I push the button, the screen flashes for like 1s blue color, you can also see that the notification panel is blacked out and part of it green and it doesn't wake up. Sometimes it doesn't even flash. It used to take about 10 tries to wake it up but today I couldn't wake it up. I performed soft reset, I couldn't see the booting animation at all but it rebooted, buttons lit up and I was able to get in. It's like the phone is working fine in the background but the screen doesn't light up. I can turn down/up the volume, take a screenshot, get into settings, open apps, write a message but the screen is black. Even my alarm went off this morning but I couldn't dismiss it.
I downloaded an Always On Display app. Although I don't actually see the screensaver when it's locked, it's still on and it's easy to get in beacuse of it.
It all started with the screen flickering on minimum brightness. In February this year I had the screen replaced for the same issue but this time it's worse because of the blacked out screen.
Any ideas what it could be? Faulty display again?
Thank you
tessicorn said:
Hi,
I have this phone for little over 2 years. For over 1 week now I'm experiencing my phone not being able to wake up when I use the power button/home button. Whenever I push the button, the screen flashes for like 1s blue color, you can also see that the notification panel is blacked out and part of it green and it doesn't wake up. Sometimes it doesn't even flash. It used to take about 10 tries to wake it up but today I couldn't wake it up. I performed soft reset, I couldn't see the booting animation at all but it rebooted, buttons lit up and I was able to get in. It's like the phone is working fine in the background but the screen doesn't light up. I can turn down/up the volume, take a screenshot, get into settings, open apps, write a message but the screen is black. Even my alarm went off this morning but I couldn't dismiss it.
I downloaded an Always On Display app. Although I don't actually see the screensaver when it's locked, it's still on and it's easy to get in beacuse of it.
It all started with the screen flickering on minimum brightness. In February this year I had the screen replaced for the same issue but this time it's worse because of the blacked out screen.
Any ideas what it could be? Faulty display again?
Thank you
Click to expand...
Click to collapse
It's over to have this phone for little over 2 years now you should have to change
TIP:
Flash a new stock rom of your phone from sammobile via ODIN.
Sophia.xda said:
It's over to have this phone for little over 2 years now you should have to change
TIP:
Flash a new stock rom of your phone from sammobile via ODIN.
Click to expand...
Click to collapse
That would be great, but I'm not a person that buys new phone every 2 years. I was thinking about it though .
When it comes to flashing. Do you think that would help? I don't want to end up with a black screen unable to set the phone up again. Cause overall it's working great .
Hi, i have the same problem, i'm from Belgium, and I have blinking screen problem and wake up screen problem :s
is it a software issue (nougat???)
before the big update (marshmallow i dont have any problem)
i'm on firmware A510FXXS7CRJ6_A510FLUX7CRJ1_A510FXXU7CRJ6_HOME.tar.md5
Turn screen brightness up abit to stop the blinking of screen. It's an issue of the screen hardware itself at low brightness after wear and tear. As for the hanging issue, maybe it has to do with your AOD app? Try uninstalling the AOD app OR flashing a stock Rom OR custom rom OR factory reset and use your phone at a higher brightness that the screen does not blink and see whether it still persists.
conanDO98 said:
Turn screen brightness up abit to stop the blinking of screen. It's an issue of the screen hardware itself at low brightness after wear and tear. As for the hanging issue, maybe it has to do with your AOD app? Try uninstalling the AOD app OR flashing a stock Rom OR custom rom OR factory reset and use your phone at a higher brightness that the screen does not blink and see whether it still persists.
Click to expand...
Click to collapse
Thanks, because of my past experience with the same problem earlier this year I know about that "solution". Unfortunately, it makes the battery die faster as expected. Which is sad because I used it mainly on low brightness. So it's really not a solution at all.
I got rid of the AOD app because I found out that the phone lights up on 2nd try. AOD didn't work at all. I have to wake it up, put it to sleep and wake it up again which is always successful and the screen lights up. The screen flashes white about 3 times in a row now otherwise it works.
I haven't flashed it yet although I wanted to. But I will see what can I do. Thank you though!
I'm having the exact same issue using LineageOS.
It's already been 2 years, but since this thread is one of the first results on Google, I'll gladly add a solution.
Exact same problem for me, went through two screen repairs under warranty, and it would always come back a year later. No difference between Samsung OS and LineageOS, though I haven't tried rooting it.
Found on Ifixit: this issue is related to the AMOLED screen technology used by Samsung (among others). You can look it up, apparently there is a bad (?) voltage management in low brightness which worsen with time.
I could fix it with the "OLED Saver" application on Play Store. It works around this voltage management and allows you to reduce the brightness without the green flickering.
I still got white flashes after the installation, but not anymore the day after. I could even disable this application without the issue coming back.
I don't know what kind of magic cleanup this app performed, but it really is a (screen) life saver.

Galaxy J7 2017 black screen

Hi everyone, my wife has this phone and she dropped it off the table. On first the screen started to dim like lowering the back light, then stripes have appeared on screen and after that it turned black. Screen turned on again, dimmed again and turn black again and thats it. Later when I tried to turn it on nothing happens not even a turning on sound. It only start to vibrate every 5-10 seconds for a quite time. I wanted to order a new display but now I'm not sure is it display broken or there is something wrong with system or firmware.
Any experience with this behaviour and any advice what could it be and how to fix it?
Cheers

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