Screen Flickering + Green Tint - Galaxy S 4 Q&A, Help & Troubleshooting

Hi! Something went wrong with my phone today. I was using it today and then it flickered (2 flickers).
After the flickering, there's a green tint (very minimal shade but still noticeable). It's not as deep black as it was before.
The flickering happens everytime I boot the phone and unlock the phone. Help. I hope this is not hardware issue.

Related

[Q] Blue tint, not everywhere and not all the time

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.

Display issue

It adds greyish tint to blue and black colors. This happens when night clock is on, sometimes randomly. Sliding brightness levels seems to fix this. Anyone having the same issue?
Pictures on this thread (it was not made by me but it shows the issue very accurately).
Edit: now by phone seems to freak out. When i slide down notification the phone turns to bright green. Turning the phone off and on fix it, but it is such an expensive phone with such issues... so dissapointed.
No?
No problem here

Phone screen blemish

Hello all,
After my phone got repaired 2 times for the same reason i want to know if other people experience this issue too?? It is most noticeable on black/blue screens.. Turns red/yellowish.. Now i have to send my phone for a third repair... Would it also be possible to just receive my money back?
Seems like the screen of this device is really really bad..
What turns red/yellowish? I am having my phone repaired right now cause I do see a reddish blurry dot on the screen when viewing video or black backgrounds.
Screen is on multiple spots discoloured on darker colours like black or blue. On those spots the colour is yellow/red where it should be the right colour.
I got that too, today, it weirded me out. The screen went full yellow tinted, and turning the screen off and on didn't do anything. So I restarted, but everything is fine now. But what about later ? Will it appear again ?

Screen flickering

hi guys my screen has randomly started to flicker out of nowhere. The flickering looks like the screen is rapidly adjusting brightness. The odd thing is that the screen only flickers when it is displaying the colour white, with other colours it appears to not flicker. There is no sign of flickering in twrp or when the phone is booting up. Any idea on whether this is software related or something to do with the screen itself.
Many thanks
gummybear165 said:
hi guys my screen has randomly started to flicker out of nowhere. The flickering looks like the screen is rapidly adjusting brightness. The odd thing is that the screen only flickers when it is displaying the colour white, with other colours it appears to not flicker. There is no sign of flickering in twrp or when the phone is booting up. Any idea on whether this is software related or something to do with the screen itself.
Many thanks
Click to expand...
Click to collapse
ROM, kernel, ☓posed. Any details?
On OOS 3.5.6, stock kernel
Was on OOS 3.1.0 with boeffla kernel when it started flickering and decided to dirty flash to 3.5.6 to see if it helped but it didnt.

Screen turns yellow with fixed black lines on medium brightness

I am using S8 for over a year. Yesterday suddenly after opening camera, the screen turned yellow with reduced brightness. and black vertical lines appeared all over the screen.
Restarting, switching ROMs dint help.
The lines show up in 30% birghtness to 70%. the issue randomly comes after using phone for few minutes.
i also notieced when i have a complete black wallpaper, the screen instead of displaying complete black, very dim red pixels are active in black area.
Any one had same issue ?

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