Samsung galaxy tab 3V sm-T116nu - Color/Screen problem - Galaxy Tab 3 Q&A, Help & Troubleshooting

For some reason a short time of using this tablet the screen will turn green, purple, and yellow and have screen scrolling. Factory reset did not fix the issue, so today the screen was replaced, and the issue still occours. What could be wrong? Defective hardware?
The catch is if you lock the screen it goes back to normal for a while, until the screen messes up again and graphics/colors are all wrong. Locking the screen fixes it over and over. How can this be? Recovery screen has no messed up colors, Boot screen has no wrong colors, could this just be a rom issue?

Related

Screen goes half black when I change LCD density.

Anybody else having an issue with you screen going half black or completely black?
This started for me after I first changed my LCD density.
Every so often I will wake my phone and half the screen will be completely black, no widgets or anything. After a couple reboots it comes back to normal.

OneX EU Version vertical dark line on the middle of screen

OneX EU Version vertical dark line on the middle of screen.
For me, I think it is related to LCD signal quality, maybe panel problem or screen cable problem. Anyway, it should be a HW problem.
The dark line is about 1 or 2 lines. It is okay with white screen, but has problem with light blue, yellow, green and light red pictures. It is not a constant problem. I can get the line removed by changing color with flashlight app. Sometimes, the dark is disappeared when you change screen colors in the app. Then it will come again at sometime.
Reboot, no help.
Anyone encountered such problem?
does sound like hardware, can you take a picture?
Attached pictures, you can see the line on blue screen and yellow screen. But nothing with white screen.
you could try safe mode (i think you have to hold volume down when restarting the device, until you feel it vibrate a few times), and then a factory reset if safe mode doesn't help, if it still persists, i'd go for replacement/repair
does look like hardware, although strange it doesn't show on white screen, but then again a dead pixel wouldn't show on a black screen, so can't rule out hardware
Many thanks for your advice. Since there is no such issue reported on the net, I just shared findings here. Maybe I will try factory reset later when I get backup ready.
lawrence750 said:
you could try safe mode (i think you have to hold volume down when restarting the device, until you feel it vibrate a few times), and then a factory reset if safe mode doesn't help, if it still persists, i'd go for replacement/repair
does look like hardware, although strange it doesn't show on white screen, but then again a dead pixel wouldn't show on a black screen, so can't rule out hardware
Click to expand...
Click to collapse
Have tried factory reset, no help.
I also can see this issue even on boot screen. So it is related to HW. But also I can make it fix sometimes with some screen fake out conditions. (by "color flashlight" tool).
Hi
jiazhen said:
Have tried factory reset, no help.
I also can see this issue even on boot screen. So it is related to HW. But also I can make it fix sometimes with some screen fake out conditions. (by "color flashlight" tool).
Click to expand...
Click to collapse
It is faulty, simple as that unfortunately.
Regards
Phil

Black Screen

So my phone has had some tumbles during me using it but outside of some cracks the phone was mostly fine.
Sometimes the touchscreen wouldn't respond properly but locking and unlocking the phone always fixed it.
After waking up and using my phone for about 10 minutes, My phone's screen suddenly went black and it won't show anything anymore.
It's not black as in not turning on, because I can see that the backlight turns on. it just doesn't display anything else.
Can this be fixed by just replacing the screen? or is there any other fix, which i doubt
Same here...?
Did you get it repaired. What was the problem..?
Same issue
Natesvn said:
So my phone has had some tumbles during me using it but outside of some cracks the phone was mostly fine.
Sometimes the touchscreen wouldn't respond properly but locking and unlocking the phone always fixed it.
After waking up and using my phone for about 10 minutes, My phone's screen suddenly went black and it won't show anything anymore.
It's not black as in not turning on, because I can see that the backlight turns on. it just doesn't display anything else.
Can this be fixed by just replacing the screen? or is there any other fix, which i doubt
Click to expand...
Click to collapse
+1
I am facing the same issue of Screen getting black. The sound keeps on coming but the display turns dark. It gets normal after a restart.

Screen Flashing White when Screen Off

Anyone else experience this? My phone just randomly flashes white when I have the screen off. Seems to be a temperature thing when its cold mainly

Replaced screen - now it auto dims so I can barely see the screen and I can't adjust it

My wife cracked her Redmi 7 screen so I ordered a replacement screen+digitizer+frame from a reputable seller on AliExpress. I followed a guide to the letter and made sure not to damage anything while disassembling, and the re-assembly with the new screen went smoothly.
When I power on the phone the Xiaomi logo comes up nice and bright, but it then auto-dims in the usual way as it loads the system except it dims to an extreme level. I mean it dims so much I can only see what's on the screen if I go into a dark room/closet. When the system loads I can navigate menus normally (as long as I'm in a dark room) but changing the brightness setting has no effect. Turning on/off auto brightness does nothing either.
It doesn't seem like there's anything wrong with the LCD, because if I reboot to bootloader it sits there with the Fastboot logo and picture at full brightness until I turn it off. I took the phone apart again to check if there was anything obstructing the light sensor and I can't see anything wrong with it.
Has anyone seen this before?
Thanks

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