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?
Search did not reveal any post with this particular screen defect.
The phone is a collegue's of mine so I can't troubleshoot it directly or tell you baseband etc. It's brand new, 4.2.2, and a 4G so probably i9505 (bought in europe, sweden). It has not been droppped, collegue would have said if this was the case . What collegue told me was it was like this when collegue got it.
Sometimes screen becomes blue, but only parts of it. You can see this clearly on the attached photos. It's most promient on white areas, which are not white at all, but, well, blue!
Especially note the partial blueness of Whatsapp icon borders.
Screen lock is being used, blue tint appears on lockscreen as well.
Could not isolate when this occurs. I did not experiment much with the giroscope, don't think that's it. I also seem to recall viewing angle not making a difference. I did have it in my possesion for 30 min, during which the blue tint did not occur. Auto brightess was already off, took brightness down 2 or 3 notches. This is what I changed in settings -> display:
Screen mode: standard
Auto adjust screen tone: off
options that should not be relevant
Screen timeout -> 5 min
Wifi -> off
After this I gave it back to collegue, about 10 minutes went by, collegue took phone out of pocket and activated screen. Now the blue tint was back. At this time I took the attached photos a well as did as screenshot capture, which is not attached, but the blue tint was present there as well. It looked exactly the same as the actual OS/what I had seen with my eyes.
Device was a this time lieing on a flat surface.
I told my collegue to turn in the device for another one, but collegue would rather try/hear about/research a DIY- solution first.
Is this a common defect? Is it sw or hw? Can it be fixed? Etc...
(black rectangles is censoring)
https://dl.dropboxusercontent.com/u/11526435/S4 blue screen 1.jpg
https://dl.dropboxusercontent.com/u/11526435/S4 blue screen 2.jpg
edit: it seems to occur when the phone's screen has been turned off for a couple of minutes. Yesterday I unlocked device after being dormant for some hours, blue tint was there. Screen timed out by itself and when I unlocked blue tint was not present. Waited 4 min then unlocked, and sure enough blue was back. Turning on-off screen solved it once again. Also tried repeatedly locking-unlocking without blue tint reappaering.
hi . i have v20 h990ds .
when i turned the second screen Off when main screen is On , in setting , the phone didn't show any thing (that is normal) but if i go to completely in dark room i can see that pixels of second screen electrically are On (black backlight can be seen without displaying anything). while i expect that when i set the (second screen being off when main screen is on) the power of second screen getting to off and don't use any battery .
when i press power button to turning off main screen , the second screen goes off at the same time as the main screen , completely.
can anybody tell me that is it occurs for you , please? is it normal when you turn second screen off the power of it (that can be realized in dark room) don't turned off?
That is completely normal. The second screen and main screen share the same backlight even when turned off you will still see some light bleed through the black pixels. They dont have separate backlights so it is still on behind the screen.
Hi! Well as many people don't know but Lg v20's main screen and the second screen are the same panel having a Cut around the left corner which make it feels like that Both displays are separate and also they make some kernel tweaks to make them virtually separate.So even you turn off the secondary display its backlight will still Remain on.
Thanks
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.
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