Weird screen issues on Shield Tablet K1 - Shield Tablet Q&A, Help & Troubleshooting

Hi!
My screen behave strange from a few days:
- Sometimes the screen slightly flashes, I can see it especially when it's in charge and it has brightness low or very high
- The screen is slightly yellowish. I tried setting it with the nvidia tool to setup colours, but even setting temperature at maximum screen remains yellowish
- I'm experiencing burn-in which is very rare for a ips screen
- Gradient background show bands of different colour gradation.
I tried a wipe and nothing change, so I think I have to send it back. I have this device from 2 months and I never had this issues. I would like to know if someone other had these issues and what do you think it's better do.

Wrong thread, sorry.

Gabrius99 said:
I have this device from 2 months and I never had this issues. I would like to know if someone other had these issues and what do you think it's better do.
Click to expand...
Click to collapse
Did you change anything before this happenend? If not, return.

edisso10018 said:
Did you change anything before this happenend? If not, return.
Click to expand...
Click to collapse
I didn't changed anything. Suddenly I had those weird issues.
Now I returned back and I have a new one. There are still banding problems but now it's working all correctly.
Very strange how screen panel works so much different on different shield tablet k1
Thanks anyway

Related

[Q] screen disaster - random tinting, solarization, turns upside down

sooo, yeah. my wife has the t959v. the screen cracked months ago, replaced it with one from ebay, works fine. a few weeks ago, it was involved in an accident and needed yet another screen replacement; ergo, back to ebay i go. installed the new screen yesterday, turn it on, all is well. for a bit.
now, the phone isn't currently, nor has it ever been rooted; pure stock tmo us 2.3.6. during boot, the splash screens and boot animation are gorgeous and perfect in appearance. the recovery menu is exactly as expected. android boots as you'd want it to, and then the display will do one of the following:
-work properly (rare)
-automatically turn off, capacitive buttons still lit, touchscreen unresponsive - turning it "off" darkens the cap buttons, turning it back on flashes the screen on for a half-second, then off, with cap buttons still lit (common)
-graphical corruption ("solarized" colors, completely wrong colors, pixel vomit in essence) (fairly common)
-screen tinting, blue most often, followed by pale yellow, then greenish, then red (almost constant)
-screen inversion - the display will show as rotated 180 degrees; grabbing a framecap in ddms shows it right way up. touches are also inverse; you have to touch where the onscreen element would be if it were displayed properly instead of where the element is; e.g. a button on lower-left will display in the upper right, upsidedown, but the screen registers the button when you touch the lower-left portion of the screen. (quasi common, equally infuriating and hilarious)
none of these problems will show up in a screenshot at all.
i can reliably reproduce any of the above by simply adjusting the screen brightness. this will, quite literally, cycle through every possible defective display mode randomly for a split-second before moving on to a different one as long as you move the brightness slider.
MOST of these issues are transient and are either fixed (temporarily) or replaced with a different listed issue if you lock/unlock the display. it feels like a hardware issue what with the solarizing and color horrors, but is acting like a software issue, considering that recovery and boot are perfect and have never displayed any of these issues. i tried gently flexing and stressing the case in areas that might be a weak connection point, but can't get it to bug out that way.
in no way am i suggesting that i didn't screw something royally in the reconstruction stage, but i tore down and rebuilt that phone 4 times with identical results, so i can guarantee it's not some loose ribbon connector or zif socket.
i beg of you, great minds of xda, what the balls did i muck up this time? any hope for a fix? are there different panels, drivers, something?
thanks in advance
OK, if your screenshots appear normal, then your phone appears to be working correctly!
or at least it thinks it is we can conclude that it isn't the rom, kernel, or anything that you can blame the phone for going screwy.
Try buying another screen??
The ribbon connector might be broken?
yeah, these were what i figured what my options were. it just seems odd that the boot process and recovery menus have error-free displays while only the full android os doesnt. oh well, i'll probably just have to make a stink about it on ebay or something.
thanks for reading
You might try a fresh flash before getting a new screen to see if it is indeed a hardware issue. If you want to try that follow the second link in my signature. You will not need to flash bootloaders since you are currently on KJ6.
lumin30 said:
You might try a fresh flash before getting a new screen to see if it is indeed a hardware issue. If you want to try that follow the second link in my signature. You will not need to flash bootloaders since you are currently on KJ6.
Click to expand...
Click to collapse
hell, warranty's void at this point anyway, right? may as well thanks much!
welp, all went well, screen was perfect through the whole heimdall/recovery process, but the problems still exist in the os c'est la vie. at least my wife's phone is finally rooted, i suppose. thanks anyway!
Have you tried opening it back up and reconnecting?
yup, 4 times, but i guess one more wont hurt
[edit]
it definitely seems to be related (if not related, exacerbated by) changes to screen brightness. turning off autobrightness has helped minimize the issue, but it still presents itself semi-often during screen-off/on events. obviously nothing useful in logcat.
zero01101 said:
it definitely seems to be related (if not related, exacerbated by) changes to screen brightness. turning off autobrightness has helped minimize the issue, but it still presents itself semi-often during screen-off/on events. obviously nothing useful in logcat.
Click to expand...
Click to collapse
That's interesting and could very well be a hardware problem with the screen. You wouldn't see that in recovery as the OS isn't loaded to mess with the brightness in that mode.
Does it do it on-demand if you mess with the brightness slider?
stephen_w said:
Does it do it on-demand if you mess with the brightness slider?
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Click to collapse
you better believe it does. rapid fire cycles through every color until it can't take it anymore and turns off. if i take/refresh a screenshot through ddms and poke blindly at the screen at that point, it'll still take input which is a curious, difficult game to say the least.
zero01101 said:
you better believe it does. rapid fire cycles through every color until it can't take it anymore and turns off. if i take/refresh a screenshot through ddms and poke blindly at the screen at that point, it'll still take input which is a curious, difficult game to say the least.
Click to expand...
Click to collapse
It's that Pink Floyd screen. You're supposed to drop acid & watch the wall when that's going on. LOL j/j
Given that you're on a fresh ROM & the problem persists, I'm leaning toward a hardware issue man. Sorry.
stephen_w said:
It's that Pink Floyd screen. You're supposed to drop acid & watch the wall when that's going on. LOL j/j
Given that you're on a fresh ROM & the problem persists, I'm leaning toward a hardware issue man. Sorry.
Click to expand...
Click to collapse
as fun as that sounds, unfortunately i bet i'll end up just getting my wife a used phone on ebay or somewhere similar and using this one as a development monkey. i was assuming that it wasn't something i could fix but hoping otherwise... yeah, that worked out
I just started having this problem. It wasn't too bad at first, just the color changes, but then it started not showing a screen at all. Changed to three different roms, even back to the stock non-rooted KJ6 and gave up. Keeping it on a steady brightness is the only way to minimize the color changing. I thought your thread had a solution but...
I may try opening it up and fixing the ribbon. But otherwise I'll keep using it as long as I can tolerate it until an S3 or a new Nexus.
kristoper said:
I just started having this problem. It wasn't too bad at first, just the color changes, but then it started not showing a screen at all. Changed to three different roms, even back to the stock non-rooted KJ6 and gave up. Keeping it on a steady brightness is the only way to minimize the color changing. I thought your thread had a solution but...
I may try opening it up and fixing the ribbon. But otherwise I'll keep using it as long as I can tolerate it until an S3 or a new Nexus.
Click to expand...
Click to collapse
nawp, nothing even close to a solution here i did end up buying my wife a whole new replacement phone and turned the broken one into my api10 development device. for what it's worth, yeah, autobrightness off does help a bit for when the phone is actively displaying content, but after you put it to sleep/screen off and try to turn it back on, it's a crapshoot. for a few horrifying hours, the screen was upsidedown even in recovery/boot animation and would NOT flip back to right-side-up until i ran the battery completely flat.
is no fun, 'tis truth. sorry for your troubles.

Light Bleed

I know it's probably been addressed before but I was hoping for some kind of explanation to the lightbleed? on my TF700T. I question it because I ONLY notice it at the initial boot screen - when the "2nd" bootscreen comes (when the display dims), no bleed - Also, no bleed when on a black screen, watching movies, etc - nothing. Is the initial boot screen just set at an amazingly high backlight that absolutely any tablet (at least any TF700s) would experience this? Perhaps there is an alternate bootscreen I could install and test? I am rooted...
thanks for the advice
PS - I HIGHLY doubt anyone would return theirs for this
Do you mean the two spots on the right side, or do you mean bleeding out from other places? I have light bleed sometimes on the right side but it goes away after a minute or so. Like it has to "warm up" or something.
no, not really - at the initial boot screen, I notice it on all sides but mostly lower left around the "home" icons-when it appears - after the initial boot, it's pretty much gone - I am thinking that the boot up for some reason is set to such a ridiculously high brightness that 0 bleed (if it is even that) is impossible. Can you post a pic of yours during initial boot or a video?
I get lightbleed occasionally but it fades out after a few minuetes.
le rustle face
terrapin69 said:
no, not really - at the initial boot screen, I notice it on all sides but mostly lower left around the "home" icons-when it appears - after the initial boot, it's pretty much gone - I am thinking that the boot up for some reason is set to such a ridiculously high brightness that 0 bleed (if it is even that) is impossible. Can you post a pic of yours during initial boot or a video?
Click to expand...
Click to collapse
I think its normal.. my original prime had the light bleeds near home buttons too. I happened to have one of those from best buys first batch the sent in plastic no bubble wrap mailers so it had a dent on the box on the same side the light bleed was the strongest. But so far of the two inifinitys ive opened up at Best Buy, light bleed was in the exact same places.
The teardown from the Prime showed that it is caused by the screws holding the screen in being too tight. If you take it apart you can fix the light bleed spots by adjusting these screws.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
terrapin69 said:
I know it's probably been addressed before but I was hoping for some kind of explanation to the lightbleed? on my TF700T. I question it because I ONLY notice it at the initial boot screen - when the "2nd" bootscreen comes (when the display dims), no bleed - Also, no bleed when on a black screen, watching movies, etc - nothing. Is the initial boot screen just set at an amazingly high backlight that absolutely any tablet (at least any TF700s) would experience this? Perhaps there is an alternate bootscreen I could install and test? I am rooted...
thanks for the advice
PS - I HIGHLY doubt anyone would return theirs for this
Click to expand...
Click to collapse
I have the same lightbleed on a bottom of my screen (at 3-4 spots) going to the right side as well (1-2 spot). They all gone on the 2nd boot screen. Do you think that this will decrease the life of the screen?
Also I have notice something else and I really not sure what is causing this. I have setup brightness to about 30%, then If I start watching anything (Netfilx, YouTube or movie) my screen is start adjusting (change brightness up and down) like Auto Brightness options is checked, especially when it has a white (or very bright) background color. It is very annoying and very distracting for you eyes. Never happen on my Prime.
Does anyone have experienced the same problem? Any idea how to fix this are very much appreciated.
Thanks
ventzi said:
I have the same lightbleed on a bottom of my screen (at 3-4 spots) going to the right side as well (1-2 spot). They all gone on the 2nd boot screen. Do you think that this will decrease the life of the screen?
Also I have notice something else and I really not sure what is causing this. I have setup brightness to about 30%, then If I start watching anything (Netfilx, YouTube or movie) my screen is start adjusting (change brightness up and down) like Auto Brightness options is checked, especially when it has a white (or very bright) background color. It is very annoying and very distracting for you eyes. Never happen on my Prime.
Does anyone have experienced the same problem? Any idea how to fix this are very much appreciated.
Thanks
Click to expand...
Click to collapse
Regarding your second issue that is a known "feature" called Dynamic Contrast.
Quoting the All in one Infinity Guide stickied in the General Forum:
[ Q ] My screen constantly adjusts brightness even if auto-brightness is disabled
Yes,that is a "feature" called Dynamic Contrast but not all of us like it.Follow the directions from this post to disable but keep in mind that your device must be rooted.
okantomi said:
Regarding your second issue that is a known "feature" called Dynamic Contrast.
Quoting the All in one Infinity Guide stickied in the General Forum:
[ Q ] My screen constantly adjusts brightness even if auto-brightness is disabled
Yes,that is a "feature" called Dynamic Contrast but not all of us like it.Follow the directions from this post to disable but keep in mind that your device must be rooted.
Click to expand...
Click to collapse
Thanks for clarification. I thought that something is wrong with the tablet. It is look like that I have to take the root solution.
ventzi said:
I have the same lightbleed on a bottom of my screen (at 3-4 spots) going to the right side as well (1-2 spot). They all gone on the 2nd boot screen. Do you think that this will decrease the life of the screen?
Click to expand...
Click to collapse
I have what sounds like the exact same lightbleed locations. If I watch something late at night with all the lights off it is very apparent.
I don't think it decreases the life of the screen, my TF Prime had much less lightbleed, but it never expanded or anything.

[Q] Defective display?

I don't really know what is happening but my year old nexus 5 seems to be developing a display problem.
It got a yellowish tint at the bottom of the screen but the top 3/4 is totally fine. What is causing it and is it just me who have this problem? Also, if you have any, please post some solutions to the problem without RMA or replacing anything.
It might be something about light leak but I am not seeing any when the screen is displaying a black picture.
onjchan said:
I don't really know what is happening but my year old nexus 5 seems to be developing a display problem.
It got a yellowish tint at the bottom of the screen but the top 3/4 is totally fine. What is causing it and is it just me who have this problem? Also, if you have any, please post some solutions to the problem without RMA or replacing anything.
It might be something about light leak but I am not seeing any when the screen is displaying a black picture.
Click to expand...
Click to collapse
I have a similar thing but it tends to only be on the bottom 1/8 of the screen.
I tend to find this is because this is the least used area of the screen - being where the soft keys go. Try running it full screen, full brightness on a white page (probably using something like this https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&hl=en_GB). When you do this, does the yellowish tint fade over time?
surrealjam said:
I have a similar thing but it tends to only be on the bottom 1/8 of the screen.
I tend to find this is because this is the least used area of the screen - being where the soft keys go. Try running it full screen, full brightness on a white page (probably using something like this https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&hl=en_GB). When you do this, does the yellowish tint fade over time?
Click to expand...
Click to collapse
By Over Time do you mean 30 minutes or a day? I tried this method before for about half an hour and it does not seems to be working. Will try it again now. But will it really help?
My OCD is killing me. I told myself not to look at the tint and I end up just staring at it.

[Q] Screen Issue? (XT926)

I received my XT926 as a refurb and I have been experiencing a strange screen issue.
I will often have my phone on a dock, charging and sometimes I will notice the screen is black like it's off, but the touchscreen is responsive. Hitting the power button does nothing but it makes the sound as if I had locked the phone. Hitting the power button a second time will turn the screen on like normal operation.
Very rarely I have noticed the screen will turn off while I'm actually using the phone and it's a weird effect. The easiest way to describe it is that it looks like entire lines disappearing randomly over a period of 1-2 seconds, going from all visible, then to all black, kind of like slatted blinds being closed, but at random. After this, it displays the same symptoms as if I had found the screen off while in a dock/charging.
Now, I don't want to say it's related, but I first started experiencing this on the Stock KitKat update from Verizon. I am currently using Cyanogenmod 12 nightlies and I am experiencing the same issue. It seems to be happening with greater frequency.
I have also experienced the blue screen effect when certain animations/elements/apps are up on my screen, but I think they are unrelated.
Also, there is a faint discoloration bar about 2/5ths of an inch thick uniformly vertically from top to bottom of my phone on the righthand side (just under where the notification bar would be if turned horizontal).
I've tried to find more information about this but my search results have been relatively lackluster (90% of the results are trying to sell me the phone or specification pages)
So I'm breaking down and turning to here. Does anyone know what's going on here? My current theory is that my screen is going bad. I have no intention of replacing the screen on this phone (would rather just buy a new one), so any suggestions that don't involve physical hardware repairs would be appreciated.
I thought i was the only one experiencing it.
The screen turning off with a weird effect happens rarely but yeah it happens. And the blue screen effect, i noticed it only happens when im on the youtube app when the video stops working because of my connectivity issues.
Im not rooted nor is my bootloader unlocked. On the latest system version. Sounds like a software problem but hey im no expert.
kayonesoft said:
I received my XT926 as a refurb and I have been experiencing a strange screen issue.
I will often have my phone on a dock, charging and sometimes I will notice the screen is black like it's off, but the touchscreen is responsive. Hitting the power button does nothing but it makes the sound as if I had locked the phone. Hitting the power button a second time will turn the screen on like normal operation.
Very rarely I have noticed the screen will turn off while I'm actually using the phone and it's a weird effect. The easiest way to describe it is that it looks like entire lines disappearing randomly over a period of 1-2 seconds, going from all visible, then to all black, kind of like slatted blinds being closed, but at random. After this, it displays the same symptoms as if I had found the screen off while in a dock/charging.
Now, I don't want to say it's related, but I first started experiencing this on the Stock KitKat update from Verizon. I am currently using Cyanogenmod 12 nightlies and I am experiencing the same issue. It seems to be happening with greater frequency.
I have also experienced the blue screen effect when certain animations/elements/apps are up on my screen, but I think they are unrelated.
Also, there is a faint discoloration bar about 2/5ths of an inch thick uniformly vertically from top to bottom of my phone on the righthand side (just under where the notification bar would be if turned horizontal).
I've tried to find more information about this but my search results have been relatively lackluster (90% of the results are trying to sell me the phone or specification pages)
So I'm breaking down and turning to here. Does anyone know what's going on here? My current theory is that my screen is going bad. I have no intention of replacing the screen on this phone (would rather just buy a new one), so any suggestions that don't involve physical hardware repairs would be appreciated.
Click to expand...
Click to collapse
i also have this with my referb i made moto give me my money back and they let me keep the phone for me it was very rare but my new phone also had a really bad screen all yellowish and bad white balance in low light if you are unhappy with it call them and say you are unhappy with the replacement here is the white glove number 800-653-7185 they are more understanding and nice but you may lose you ability to unlock your bootloader on the new phone if it comes with the latest software just a warning
I have that screen off with lines slowly disappearing thing, too And, yeah, it's also a refurbished one, bought from one of the sellers on aliexpress... I thought Lollipop was the culprit or something like that. Oh, well... It rarely happens. And luckily I only have that, not the second issue you mentioned
I am having this exact same issue. The weird lines-to-black screen thing, and the flickering blue screen when watching video. Are you saying the solution is to call Motorola and ask for a new phone?
The blue flickering can be prevented by going into Developer Options and checking "Disable HW Overlays".
The discolored stripe on the screen sounds like burn-in; these AMOLED screens are much more susceptible to burn-in than the LCD screens used in older phones. Whomever owned the phone before it was returned to Motorola probably had something running on their screen continuously with a bright-colored bar at the top, likely in a car or desk dock. The screen is very easy to replace yourself with an eBay part, if you're inclined; it involves 2 screws and 2 connectors.
I've seen the lines-to-black thing exactly twice since I got this phone refurb two months ago. Sorry, I don't know what causes it or how to avoid it, but the workaround is quick and simple enough that I'm not worried about it, yet.

Screen issue with low brightness S7 - horizontal lines interference?

Hi,
When I have low brightness the screen the screen shows black horizontal lines as if it was like an interference.. (it's very visible on 0:27 in white background)
Do not know if its a hardware or software problem but when I increase the brightness the lines disappear.
video: https://drive.google.com/open?id=0B64u8H_erzPTc3d0bHRsR3BNUms
or https://youtu.be/8Z3xWsanVLQ
It's very annoying, anyone else experienced this?
I haven't had that issue with mine. Could be software or hardware. If you really wanna make sure just do a factory reset without restoring apps and if it comes back it's a hardware problem.
Hi, anyway to backup everything so I can test ?
I'm also having this exact problem and i only received the phone today.
Mine appears to happen more significantly straight after an unlock of the phone (from the lock screen) , it does not appear to happen as frequently when the brightness is turned up fully however.
I have factory reset the phone (without restoring ANYTHING from other accounts/backups) and this has not helped. What's interesting is this is happening during the phones initial installation/setup also.... so before I've even entered any account info , i lock the screen and then unlock and i'm presented with flickering horizontal lines which remain for about 10 seconds and then the screen eventually rights itself, so this proves that it is not a user data issue.
It's also worth noting that this does not happen every time i lock and unlock. I've tried removing expandable memory, with an without charge cable , with screen brightness set to auto and off auto , taking the sim out, auto rotation on and off and none have stopped the issue. I'm going to call my provider tomorrow to see if i can get a replacement , but if thought i'd add my 2 cents
sillymansam said:
I'm also having this exact problem and i only received the phone today.
Mine appears to happen more significantly straight after an unlock of the phone (from the lock screen) , it does not appear to happen as frequently when the brightness is turned up fully however.
I have factory reset the phone (without restoring ANYTHING from other accounts/backups) and this has not helped. What's interesting is this is happening during the phones initial installation/setup also.... so before I've even entered any account info , i lock the screen and then unlock and i'm presented with flickering horizontal lines which remain for about 10 seconds and then the screen eventually rights itself, so this proves that it is not a user data issue.
It's also worth noting that this does not happen every time i lock and unlock. I've tried removing expandable memory, with an without charge cable , with screen brightness set to auto and off auto , taking the sim out, auto rotation on and off and none have stopped the issue. I'm going to call my provider tomorrow to see if i can get a replacement , but if thought i'd add my 2 cents
Click to expand...
Click to collapse
Hi
yes occasionally it happens with lock screen... and yes with max brightness it seems not happen...
Everything on my phone works perfectly, I don't have any other issues common which are reported here but this it's so annoying :s
I think it's the auto britghtness service but I don't know how to disable it.
Can you test if in VSCO app when you change filter it happens too more strongly (like it happens to me)
borgez said:
Hi
yes occasionally it happens with lock screen... and yes with max brightness it seems not happen...
Everything on my phone works perfectly, I don't have any other issues common which are reported here but this it's so annoying :s
I think it's the auto britghtness service but I don't know how to disable it.
Can you test if in VSCO app when you change filter it happens too more strongly (like it happens to me)
Click to expand...
Click to collapse
I've always just disabled auto brightness using the check box labelled (auto) next to the brightness slider .....?
And I've downloaded that app and yes it's also happening when i change the filters.
I've just come off the phone with my provider (vodaphone) and ordered a replacement which is free, as i only got the phone today
I haven't found any similar threads for this same problem for the S7 specifically (at the time of writing this) , but there seems to be similar issues with some nexus devices too , which also use AMOLED screens so could just be that we're the unlucky ones and have faulty devices. If your's is in warranty i would get it replace
sillymansam said:
I've always just disabled auto brightness using the check box labelled (auto) next to the brightness slider .....?
And I've downloaded that app and yes it's also happening when i change the filters.
I've just come off the phone with my provider (vodaphone) and ordered a replacement which is free, as i only got the phone today
I haven't found any similar threads for this same problem for the S7 specifically (at the time of writing this) , but there seems to be similar issues with some nexus devices too , which also use AMOLED screens so could just be that we're the unlucky ones and have faulty devices. If your's is in warranty i would get it replace
Click to expand...
Click to collapse
the problem is that I 'm not already within 14 days and I did not want to be several days ( or weeks ) without S7.
How do I know if they give me a new one or try to fix this one ?
Can you show me the links with this similar problem on nexus?
what piece of hardware is faulty ?
what is for sure this is not a software issue. is it a problem of the screen or the integrated graphic chip ?
mar1b said:
what is for sure this is not a software issue. is it a problem of the screen or the integrated graphic chip ?
Click to expand...
Click to collapse
Hi it's integrated graphic chip, Samsung fix it and now I don't have the issue
Black Stripes on the Screen
Hi All,
I have started facing the same issue for the past couple of days. When I increase the brightness to the Fullest Maximum and Tick the Auto box, then the Black stripes on the screen disappears, but if I lower the brightness then they start appearing, the more I lower the brightness the thickness of the Stripes become heavier. Please help me someone on how to fix this issue. My phone barely one moth old. Samsung Galaxy S7 Edge.
hi did samsung change anything in the unit? how did they fix?thanks
---------- Post added at 01:05 PM ---------- Previous post was at 01:01 PM ----------
borgez said:
Hi it's integrated graphic chip, Samsung fix it and now I don't have the issue
Click to expand...
Click to collapse
hi,did samsung change anything in your unit?or just upgrade software?thanks
xdadeveloperian said:
Hi All,
I have started facing the same issue for the past couple of days. When I increase the brightness to the Fullest Maximum and Tick the Auto box, then the Black stripes on the screen disappears, but if I lower the brightness then they start appearing, the more I lower the brightness the thickness of the Stripes become heavier. Please help me someone on how to fix this issue. My phone barely one moth old. Samsung Galaxy S7 Edge.
Click to expand...
Click to collapse
Bad news matte, I had the same problem ... I had to put the phone under warranty and there was told they would have to change integrated graphic chip. Now the problem is gone for good
jep888 said:
hi did samsung change anything in the unit? how did they fix?thanks
---------- Post added at 01:05 PM ---------- Previous post was at 01:01 PM ----------
hi,did samsung change anything in your unit?or just upgrade software?thanks
Click to expand...
Click to collapse
Yes.. I had to put the phone under warranty and there was told they would have to change integrated graphic chip. Now the problem is gone for good
Hi there! Do they have to change the screen also or is the chipset something standalone? Just happened to me today...
xdadeveloperian said:
Hi All,
I have started facing the same issue for the past couple of days. When I increase the brightness to the Fullest Maximum and Tick the Auto box, then the Black stripes on the screen disappears, but if I lower the brightness then they start appearing, the more I lower the brightness the thickness of the Stripes become heavier. Please help me someone on how to fix this issue. My phone barely one moth old. Samsung Galaxy S7 Edge.
Click to expand...
Click to collapse
Hello,
It seems we have the same problem, I will proceed with warranty.
After a month of purchasing, the brightness sensor is failing, and the screen horizontal white lines. (Image 1)
drive.google.com/ open?id= 0B2Kw-KtTnhcSSGFraExIVEZ1Qzg
Then adjust the sensor to the maximum or minimum lines become smaller. (Image 2)
And finally if I expose the sensor in the sun or in this case to bright light (Figure 3) lines on the screen disappear.
sillymansam said:
I'm also having this exact problem and i only received the phone today.
Mine appears to happen more significantly straight after an unlock of the phone (from the lock screen) , it does not appear to happen as frequently when the brightness is turned up fully however.
I have factory reset the phone (without restoring ANYTHING from other accounts/backups) and this has not helped. What's interesting is this is happening during the phones initial installation/setup also.... so before I've even entered any account info , i lock the screen and then unlock and i'm presented with flickering horizontal lines which remain for about 10 seconds and then the screen eventually rights itself, so this proves that it is not a user data issue.
It's also worth noting that this does not happen every time i lock and unlock. I've tried removing expandable memory, with an without charge cable , with screen brightness set to auto and off auto , taking the sim out, auto rotation on and off and none have stopped the issue. I'm going to call my provider tomorrow to see if i can get a replacement , but if thought i'd add my 2 cents
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may i know what model is your affected unit? is it s7 edge color black?
same issue here on my girlfriend's s7 edge from EE. im going now to ask for a replacement. i dont bother i have insurance but i'm still curious if it is the oled related problem or other component. in my opinion as technician it's a hardware related issue. I only think about i've never meet any software /os to have that issue ever. how can a software can do that if there are lines overthere specified for drawing certain things, the stripes/lines cannot come out of nowhere
First it was the dead pixels issue on the screen on the s7 n now the screen flickering lines on s7 edge n s7 ... These are not software bugs these are serious hardware issue very disappointing samsung shame even their gorilla glass is also a lie easily scratchable screen
Finally found a complete solution here.
Works like a charm.
techgadgyblog.wordpress.com
Yes, I have my phone 3 years and the screen has been getting more and more dim over the last few months. The bottom 7/8s of the screen is darker thsn the top 1/8.

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