Galaxy tab s 8.4 t-700 lcd screen issues - Galaxy Tab S Q&A, Help & Troubleshooting

Hi, maybe someone have encouter similar issue and have and could comfirm if there could be anything else i could do except replacing whole lcd+touch, which cost pretty much same as new unit
My my screen is showing some weird artefacts on screen, at first there is not much but its getting worse after few muniutes of use. If i lock and unlock the device i show white light bleed on left side of the screen (first picture) then if i lock again, wait for a while it disappears, but some artefacts and color pixel start to show on left side (second pic). After a while some strong white lines apear, always in the some spot, but if i put down the device for few minutes it desappers. Reattaching battery didn't help, i guess thats not the case. Could this be a faulty LCD connector? Or the screen is dying.. ? Definitly not a software bug, i just upgraded to 6.0 and even in bootloader mode while upgrading there were those two lines (last pic)

What screen brightNess do you use. It's recommended to use 20% to avoid screen burn in

dksohum7 said:
What screen brightNess do you use. It's recommended to use 20% to avoid screen burn in
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Hmm.. since i usually use the tablet in bright locations its probably set to higher then 50%, at least..
There is one more thing, after like 10 minutes of use, almost all the above issues stops, only thing that stays is the "burned like" vertical stripes, barely visible, on about 2/3 of the screen.
I does not make the table unusable but its quite annoying...
could this be affect of screen burn in ?

i think its just a bad screen from a begining cuz i have tab s 8.4 for almost 2 years now and i gave it to my brother for a year and he was in Tenerife...temperatures there are high so i doubt its a screen burn since my tablet is still ok even after one year at Tenerife with probably brightnes always on 100%...just sharing my xperiance cheers guys

Related

yellow screen tint/spot FIX!

1) go to display settings and set sleep to never turn off and brightness to full
2) install 'dead pixel detect and fix' from market
3) open 'dead pixel detect and fix' select colors, custom then a nice bright yellow
4) once your screen is bright yellow put on charge and leave for the night
I'm unsure if this fixed my problem or just a coincidence that my screen got better over night anyway but I thought I would share to see if it helps anyone else.
djpoe said:
1) go to display settings and set sleep to never turn off and brightness to full
2) install 'dead pixel detect and fix' from market
3) open 'dead pixel detect and fix' select colors, custom then a nice bright yellow
4) once your screen is bright yellow put on charge and leave for the night
I'm unsure if this fixed my problem or just a coincidence that my screen got better over night anyway but I thought I would share to see if it helps anyone else.
Click to expand...
Click to collapse
This sort of trick helped me solve flickering but only temporarily.. I think yout problem will come back as well
Sent from my GT-N7000 using xda premium
It had been 2 days and is still good. I read up that a lot of one x's have the same problem, yellow smudges appears about 3 days after purchase but suppose to fade after about 2 weeks. So I don't think it will return this is just to speed things up a little.
I thought that it was due to hardware, but maybe not so much?
Well ill try to work on it for few days on full brightness, maybe it will reduce the glue grain, I noticed its on all one Xs they just vary in intensity
Sometimes pixels get stuck at a colour and flashing the area between different colours really fast can fix it.
Sent from my HTC One X using xda premium
Unfortunately my screen is yellow at the bottom and every pixel app I find has the menu bar there. What I did do though was leave chrome on the settings page and it did help to reduce it., however I've just been playing some fruit ninja. My phone got hot the touch screen stopped working correctly and the yellow is back worse than before
I am trying this now and will let it run overnight.
I currently have 2 yellow spots on the top of my screen. Hoping this will make them go away faster.
chris_lyon82 said:
Unfortunately my screen is yellow at the bottom and every pixel app I find has the menu bar there. What I did do though was leave chrome on the settings page and it did help to reduce it., however I've just been playing some fruit ninja. My phone got hot the touch screen stopped working correctly and the yellow is back worse than before
Click to expand...
Click to collapse
My yellow blobs was at the top of the screen, so the black menu bar at the bottom wasnt a concern for me. I am currently using tripndroids cm9 build that takes the black bar away and gives you full resolution use. Only attemp cm9 if your boot loader has allready been unlocked, so you can still replace your phone if things dont improve.
for anyone using cm9 they dont have the option to turn display sleep off completly, so i would recomend downloading an app callled 'screen on' that does the job from the market.
The yellow tint/spot isnt a hardware fault. It comes from poor manufacturing processing. If you squeeze hard on the edge of the screen for prolonged time, the yellow tint/spot appears. Once the pressure on the screen is normalized, the tint/spot will be gone. However, there is a chance that prolonged pressure will cause permanent damage, it is wise for you guys NOT to put your H1X into your jeans pocket!
Sent from my HTC One X using XDA
treebill said:
Sometimes pixels get stuck at a colour and flashing the area between different colours really fast can fix it.
Sent from my HTC One X using xda premium
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Click to collapse
That can be achieved by just clicking fix on the dead pixel app, when i attempted this for about 2 hours i never saw any changes as after just trying a constant yellow i instantly saw that my screen got brighter, whiter and the yellow smudges on top of my screen started to fade. I compare to my partners one x to check for improvements.
Any luck?
Sent from my HTC One X using XDA
I do hope that this solution help you with that problem.. however there must be a reason why HTC help support keeping my HOX at their location , as far as I know they waiting for new battery as well as NEW LCD..according to that information must be smth wrong with LCD... (yellow dots of course)
So I need to switched back to my HP pre 3 for a while..
Hi i have the same problem with my HOX, my HOX is perfect except for the blue spot when i turn my screen brightness to full and use a black wallpaper you can see the blue spot, i dont know what i must to do because it is my second HOX and it took me 2 weeks to get a replacement unit from virgin if any body in here has experience with htc australia service centre please let me know thanks (i did try to use the app but no luck)
Sent from my HTC One X using Tapatalk 2
Alright -
I let it run for like 12 hours last night.
My yellow spots are about 75 percent gone!!!!
I am going to let it run again tonight and will give another update.
For those of you will yellow spots I would suggest giving this a shot. So far it seems to be working for me. Although I will keep an eye on it to see if it comes back or gets worse again.
Thanks!
any idea if this deals with the glue grain too?
I don't think the color really matters - what metters is that it is left alone AND getting warm.
I guess if you put a book on top of it while running a 3D game, 90% of the spots will be gone momentarily, but as soon as you start using it they will creep back because it is a lamination problem and not a screen problem...
And for those who claim their spots "disappeared" after a week - yes, they did disappear for me one day, but were back once I started using it heavily.
the spots problem will not appear for those who have a flawlessly fit screen
this is why i advice those with lamination issues to get rid of the phone, lamination issues = spots, uneven whites and chance of dust get in
Does anyone have any further evidence that this works? I've got a very light yellow haze/spot in the bottom right hand corner of my screen which I'm not too happy about.
Hoping that it does work because I don't really want to go through the hassle of acquiring a replacement. I will do if the problem is terminal though.
Thanks.
I don't have the yellow spots. But the top part of my screen has a yellow tint. This is my second phone and its perfect apart from this. Only had it a couple of days though so I'll give it time to see if it will fade.
I can only do a swap once more and I don't want to end up with a worse phone and have to send it away for repair.
Dilemma!
Sent from my HTC One X using XDA

[Q] Appearing and disappearing white pixel?

Hey guys, today I noticed something weird on the left-est (if that's even a word) panel of my HOX. When i click on bottom half of the screen, a white pixel appears and stays there until i touch the screen again and sometimes the white pixel just flashes! This only happens on the 1st panel (from the left) and I don't know if it's just a glitch or a hardware problem. The thing is, this is my second HOX (I had another one for 1 week before replacing it (it had a small black circle-y spot) ) and I had it for more than 2 weeks and the returns policy of the store I bought it from says that they can't replace it if it's more than 2 weeks old. Any ideas if it's hardware or software related, or even ways to check so?
UPDATE:
I think you'd want to know that I have an HT23 model
I had a similar problem with a bright red pixel at the left of the center of the screen. It usually appeared when I am not touching the screen and disappears when I do. After the screen got a yellow tint that appeared next to the volume up button which got worse the hotter the phone got, I took it to the shop and they replaced the "touch, battery and speaker". Touch pretty much means screen as well, I have no idea why they changed the other 2.
It's definitely a hardware problem since I had a similar issue with a stock phone. Btw the yellow tint appeared after 5-6 months, the red pixel was there pretty much from the beginning.
lpslayer said:
I had a similar problem with a bright red pixel at the left of the center of the screen. It usually appeared when I am not touching the screen and disappears when I do. After the screen got a yellow tint that appeared next to the volume up button which got worse the hotter the phone got, I took it to the shop and they replaced the "touch, battery and speaker". Touch pretty much means screen as well, I have no idea why they changed the other 2.
It's definitely a hardware problem since I had a similar issue with a stock phone. Btw the yellow tint appeared after 5-6 months, the red pixel was there pretty much from the beginning.
Click to expand...
Click to collapse
So should I go and ask/demand for a replacement? It doesn't bother me, I don't even use that panel at all, what annoys me is the fact that this is the second HOX I've had and it also has a problem!
It's a hardware fault go and demand for a replacing (HT26+/SH26+).And, if someone later on (in this thread or else ware) suggest to use a software to fix it. Don't bother with it.
I have HT25 with yellow tint showing from time to time. It's annoying me, and still I didn't get the chance to give to to HTC care.
neuTrue said:
It's a hardware fault go and demand for a replacing (HT26+/SH26+).And, if someone later on (in this thread or else ware) suggest to use a software to fix it. Don't bother with it.
I have HT25 with yellow tint showing from time to time. It's annoying me, and still I didn't get the chance to give to to HTC care.
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Click to collapse
Okay, I will, thank you.
EDIT:
But, if they tell me that my returning period has passed, what will I tell them?

[Q] Screen flickering (CRT like)

Hi,
EDIT
Resolved it (kinda), I shut the "Economy mode" and the screen stop the flickering....
---
I'm creating a new thread for this problem got an answer there telling me it's my phone, but I would like to know if somebody else notice this.
It's like on good old CRT. Got a Note I (got stolen) bought a Note 2 and I can see a flickering, like if the display had a 60Hz refresh rate, never notice such a thing with the Note I.
It's more noticeable on white screens. And when you are using peripheral vision, by pointing your eyes like 10 centimeters from the side of the device, the flickering must be more visible
The effect looks like this http://www.youtube.com/watch?v=M3jHOwE8MqA not mine but can give an idea of the problem.
Thanks
Livebyte said:
YES I HAVE SUCH A PROBLEM.
I was worried sick that my phone might be going dead soon.
And I'm talking about Note 1 here.
I don't want to waste money on a Note 2. I don't want burn my wallet again! ):
Click to expand...
Click to collapse
Never notice it with my Note I, it seems that it's partly due to AMOLED technology, but as I did not notice it on my Note I...
Maybe it varies form device to device...
The effect looks like this http://www.youtube.com/watch?v=M3jHOwE8MqA
Livebyte said:
YES I HAVE SUCH A PROBLEM.
I was worried sick that my phone might be going dead soon.
And I'm talking about Note 1 here.
I don't want to waste money on a Note 2. I don't want burn my wallet again! ):
Click to expand...
Click to collapse
It's Float like a butterfly, sting like a bee.
Livebyte said:
Yes I have it, but mine is definitely more severe than yours.
Click to expand...
Click to collapse
Then why didn't you return it under warranty?
Go to Display > Features > Smart Rotation . Disable Smart rotation and voila the problem is resolved....
BoneXDA said:
It's Float like a butterfly, sting like a bee.
Click to expand...
Click to collapse
Don't feed the troll
Ok, so if you do not own this device the Note 2, and do not want the device, why chime in and post/comments...
My scraan is flickering too. Feels like old CRT TV. When brightness not at 100% level I can observe this problem. Looks like samsung using PWM to control brightness. I think this is terrible. And I hope this can be fixed by software (adjust brightness by gamma correction etc)
mine also sometimes flickering on the lock screen in the near clock area for about 0,5-1 sec. but no need to worry, i guess its a hidden samsung note 2 feature...
So there are no solutions to fix screen flickering? Maybe we can overclock screen somehow? Maybe alternative brightness control?
The screen flicker mus be due to a bad batch of screens. Mine had the screen flickering too. and even with economy mode shut down and brightness is set to less then 100%. if you rapidly move the phone you can see that you see several screens instead of a blurry moving screen. this way you know it flickers. so for example if you move your phone up and down very rapidly instead of seeing a blurry view of the screen you will see several edges of the screen simultaniously. this tells you its flickering. While just looking at the screen you wont actually see the flickering but its somehow disturbing.
The way i know that your screen is defect is because due to a rescent replacement of my screen on my note 2 the flickering is totally gone now.
But keep in mind that my battery usages with screen on has increased. so i think samsung changed the power management for these new screens so that they wont flicker anymore. but they consume more power now. first i used the screen 6,5 hours and had a standby of 24 hours. now i have 6 hours screen on time with 24 hours standby. so its a bit of a change though. I just tested it 1 time. so it could also be i used the phone in another way when getting only 6 hours.
But just to let you guys know the flickering can be fixed.

[HELP] Vertical Lines on Screen, Possibly Not Related to Screen

Wondering if anyone has any advice on something, plus I'd like to make some observations on a common problem. I dropped my phone about 4 months ago from about 3 feet up, in the cold (around 5C). Since then, I've had vertical lines appearing on my screen as in this post (https://www.asus.com/zentalk/thread-70061-1-1.html). Only difference is the lines don't extend all the way up the screen. There is about an inch at the top where the screen is normal. I have a few observations about the issue:
- It does not appear to be a broken screen. I replaced the screen/digitizer/frame assembly with another (used one), and it worked at first, but developed the same symptoms after a few days, out of the blue (did not drop).
- I can coax the screen to act fairly normally if I display a mostly white screen (either by inverting colors, or by setting a white background/opening a white app, etc)
- After a certain amount of time with a "mostly white" screen, I can revert to a dark screen and it seems to act normally and display dark colors again/can see everything on screen (not always though).
- When it's funky, I can see a vertical line about an inch from the top that flickers - above it, the screen is normal, below the screen is funky (vertical lines)
- It happens randomly, as in it will work normally, I will shut off the screen, and when I turn it back on, it's funky again.
- Weather/heat/cold appears to have no impact on it.
- This occurs during boot and in TWRP recovery, so it's not caused by software (doesn't seem like it's ROM dependent, by the way, I'm on CM 13.0), perhaps by bootloader which is common for everything that runs on the phone?
From these observations, it seems like it's not the screen that's the issue but rather the board the screen connects to (inside the phone, top board with the camera/volume attached to it). Does this seem right? I can't figure out why the screen would work when mostly white is displayed. I had a theory earlier that perhaps a (nano/micrometer sized) crack developed on the transparent conductor used to build the TFTs that drive the individual pixels - that would seem to make sense of the "white". As the lower pixels are driven, sufficient voltage/current is supplied to bridge the very small crack that occurred, leading to a (mostly) normally working screen. However that would have been fixed by replacing the screen, so it doesn't seem like that's the case.
I see two possibilities:
- The board that connects to the display has something that cracked/shorted like I mentioned above and sufficient voltage/current bridges the crack
- OR The second LCD is also broken - however this doesn't seem to be the case as the screen worked perfectly for a couple days. I haven't had the screen work for that long since this happened.
So, what are everyone's thoughts? I'm out of warranty. I could try replacing the board or just get a new phone. Or perhaps someone else has some insight...

full brightness issue?

I've noticed in the last few days if it's sunny out when using the phone outside the phone puts the brightness up to MAX and I get green, yellow lines all across the screen. If I manually lower the brightness a little it's all ok again. I imported the AL00.. I'm guessing Huawei won't fix it as it's an import... Anyone got any ideas?
ooMoo said:
I've noticed in the last few days if it's sunny out when using the phone outside the phone puts the brightness up to MAX and I get green, yellow lines all across the screen. If I manually lower the brightness a little it's all ok again. I imported the AL00.. I'm guessing Huawei won't fix it as it's an import... Anyone got any ideas?
Click to expand...
Click to collapse
No ideas but I noticed the lines too. It was a really bright sunny day and snow around. The stripes could be seen on the white screen only. It came as a huge surprise cause I haven't noticed any other screen error or malfunction. And screen test passed without any problem.
Same for me.. Only outside and with majority of screen being white. Normally they show up when unlocking and dissapear after a second or so, I think when I start to scroll or similar.. no one else?
It's one of the oled downsides. Check it with 5% grey picture or search on youtube to 5% or 10% grey test.
More info:
https://forums.macrumors.com/threads/iphone-x-display-uniformity-problem.2085460/
A picture to test:
https://i.imgur.com/DUEKJzH.jpg
The first screen in that topic is what I have too on my Mate20X. It's a gamble. If you return it and swap it, you may get a worse unit.

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