Display Issue - Samsung Galaxy Note 20 Ultra Questions & Answers

The lower half of my display over the last couple of days is "shaded" as if there is a mildly transparent window or split screen thing going on. Also, when trying to end a call this lower half is black until the other party hangs up then it goes back to the "shaded" appearance. This area flickers a little as well. There is no issue with touch sensitivity. It's kind of difficult to explain so I might need to get a video up. Anyone experienced this at all?

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LCD Screen Defect or Software/Driver Problem?

Hey guys,
I am going crazy here, searching forums did not help me at all.
The lower section of the screen keeps flicking, and not always, what do i mean by flicking, its like the screen at the lower section keeps doing like a strange low refresh rate, and has an old imprint of some old menus. Happens especially when there is the color of gray.
Made a screenshot of the phone, no problems, there, so its not a software rendering problem, might be a drivers problem though, or a defec tin the screen itself.
Frequency is high but not always, and am unable to determine when does that happen exactly. going crazy here, is this a defect? or all touch pro's have this?
Exact explanation summary:
1CM from the bottom of the LCD sometimes flickers as if that 1CM is having an extremely low refresh rate. Mostly happens when there is light gray, but not necessarily, and a soft reset for the phone does not remove it. It happens on random!
Hey,
Yeah it happens to me too! You don't need to do a soft reset, it actually fades away if you watch it closely! I don't know what it is either, and yes it is random as you have stated! I initially thought it was an application I installed as it only started happening after that, so I did a full hard reset and its still happening! Not sure what or how, but hoping next firmware version stops it!
Cheers,
mpls-te
As it happens, that's exactly why I've logged on here today! Any ideas whta the cause might be?
OK, good to see that others have this, so am not alone here, experts here, any ideas? other touch pro users, can you please leave your statements?
I hope its a driver issue.
But from what i noticed, its like, the screen is OFF, as in blank and no back light, but somehow, the application working on the screen before you turned off the device is somehow printing something on the LCD, something that we don't see, and when we actually start the phone and its back light, that OFF LINE imprint pops on screen. Something like that.
Its completely illogical, but dunno, can't find any sense here and am going crazy
Same thing happened to me and a few others as well.
See my thread here.
What rom is everyone using?
I've noticed a similar issue with mine, except rather than something software it seems like it's the backlight for the bottom 1cm of the screen flickering slightly. I don't see any weird pixels or inappropriate screen information, just a dimming/high speed flickering of the backlight in that same regionas yours. It comes and goes. Sometimes weeks without it, then maybe 3 times in a day for a minute or two at a time. Everything else works fine and whatever screen I go to displays fine.
I'm assuming it's a hardware problem with the LED(s) that light up the bottom portion of the screen, and I'm going to use it as an excuse to get a warranty replacement somewhere near the end of the warranty when the phone's getting a little old and worn.
maxh said:
I've noticed a similar issue with mine, except rather than something software it seems like it's the backlight for the bottom 1cm of the screen flickering slightly. I don't see any weird pixels or inappropriate screen information, just a dimming/high speed flickering of the backlight in that same regionas yours. It comes and goes. Sometimes weeks without it, then maybe 3 times in a day for a minute or two at a time. Everything else works fine and whatever screen I go to displays fine.
I'm assuming it's a hardware problem with the LED(s) that light up the bottom portion of the screen, and I'm going to use it as an excuse to get a warranty replacement somewhere near the end of the warranty when the phone's getting a little old and worn.
Click to expand...
Click to collapse
Lool, evil, lets just hope that this problem DOES occur when you go to their shop for your replacement
Good idea though, might do the same thing except that i have to travel abroad to where i got the phone from to actually get the warranty working. Don't forget to re-enable stock SPL and stock ROM
It happens frequently enough I'll be able to get it on video just in case they need proof, but typically they just exchange by mail.
I just posted in another thread about this issue. I have run into the same thing a few times. The bottom portion of the screen flickers, and when i do things that have a dark gray or black screen I can see a ghost image of the left and right soft keys from my TFL3D home screen. It seems to be most noticeable when the screen brightness is set to max. To get it to go away I usually do a few soft resets, and then, if needed, i will turn off the phone and take the battery out for a while. I have never tried waiting it out to see if it will just go away on its own.
proj3ktpat said:
I just posted in another thread about this issue. I have run into the same thing a few times. The bottom portion of the screen flickers, and when i do things that have a dark gray or black screen I can see a ghost image of the left and right soft keys from my TFL3D home screen. It seems to be most noticeable when the screen brightness is set to max. To get it to go away I usually do a few soft resets, and then, if needed, i will turn off the phone and take the battery out for a while. I have never tried waiting it out to see if it will just go away on its own.
Click to expand...
Click to collapse
I see that everyone posting in this thread,that has their signature filled in, is using the Energy ROM. I find that very interesting.
i am having the same problems, sometimes touchflo3d will flicker at the bottom, near the edges. I also get text that can be read through other screens. Like on pocketshield i can see the left and right softkey words still at the bottom. its so odd !
P.S im on energyrom
I'm on NATF v2.2, not an energy rom. But then again, mine looks more like a hardware issue, as I've never seen any ghost images of text or softkeys, just flickering.
can somebody post screens?
maybe the same problem here...
hardreset, other roms > problem still there:-(
Same problem here and I am using stock rom!
here are 3 screens of my xda diamond pro, using latest official o2 rom and newest romeOS eng
hope you can see this prob?! same like yours?
climber1872000 said:
I see that everyone posting in this thread,that has their signature filled in, is using the Energy ROM. I find that very interesting.
Click to expand...
Click to collapse
Well, i doubt EnergyROM has anything to do with that problem, since my Stock ROMz had same problem, never got fixed with any updates HTC used to release. MAYBE some Cooked ROMs out there have this solved, if any, please let us know And my problem is nothing close to screenshots above :S
mj084 said:
here are 3 screens of my xda diamond pro, using latest official o2 rom and newest romeOS eng
...
hope you can see this prob?! same like yours?
Click to expand...
Click to collapse
Dude, those photos are awful, after seeing them am happy with my phone flickering, its nothing close to this.
You see, in your photos, all three of em, you some kind of shadow effect, where text of a button for example has that same text beneath it 3x6mm, that is not my case at all.
My case is as follows, IF i am on the home screen for example all looks ok, except that the bottom 1CM of the screen is flickering. If i go to another window, either a total black one or any other screen, i would still see a ghost of the old home screen, for example, and only at the bottom 1CM.
Will post photos once i get my cam back. Cheers
similar issue
my issue is kinda similar, instead of getting the bottom 1cm or so discoloration or stuck pixels, I get streaks of red or blue on my screen. I have had this happen on each version of NATF I have tried, but don't remember it happening on the stock version (which I am tempted to try again to see if that's the issue).
Could this be a driver issue?
mind is even worse than all you guys, the touch screnn dose not response, and i have the energy rom on it, before it goes wrong. it just suddenly dose not response, than i send it to HTC, they ask for 425.00 for fix.... I will just send this to Asia and get some one to fix it.
But I hope before i send it out, some one can help me here.... anyway can fix it easy!!!!
Hi all, i have the same problem, here's another topic about it
http://forum.xda-developers.com/showthread.php?t=447891&page=2

The bottom of the screen lights up with more strength

Hi all, about three months ago I replaced my phone's screen. Until recently I never noticed anything wrong with the OEM replacement. But earlier today I noticed that the bottom of the screen (where the nav buttons are) lights up with more strength than the rest of the screen... Is there any way to fix that or do I have to just let it be?
Also, since I don't know if the problem was there right from the moment I made the repair, I was wondering if this could be caused by software (let me explain).. I use an app called Screen Filter, that acts like a screen dimmer, but the thing is that it never dims the bottom of the screen because of some kit kat incompatibility (as like in the windows counterpart software (Dimmer) when a window is momentarily above other the dim goes off for that particular window, and the moment you finally select the window all the screen is dimmed for good). Could this Screen Filter app have caused damage on the bottom of the screen, consequence of always being not dimmed while the rest of the screen was?
Thanks in advance.
PD: Since I saw the problem I uninstalled the app as a precaution and tried to reboot and see if that made the trick, but unfortunately it didn't. Maybe the damage its already done.
Is it light bleed? Some LCD panels are plagued with it. I had a replacement N5 that just got sent back to Google that had horrible light bleed on the bottom of the screen. It could just be the panel you used and you never noticed it before. An app can't damage the screen like that, as LCD panels are not susceptible to burn in like OLED is.

[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.

My phone is semi-constantly getting this dark line down the left side of the device?

It's really weird and I have never experienced this in any Android device, but at least once a day my phone will get this line about 1/8 screen length from the left and it stays and adjusts with the screen orientation. This issue started occurring I'd say about two weeks ago. I really do not know what's going on with my phone, the only thing I can guess is that the screen I purchased when I replaced my phone screen is running faulty, but this is screen I got around December. Taking a screenshot does not show the line on the device and it is 100% not a stray hair that's stuck to the device. What can I do to fix this? Rebooting or turning the device off doesn't work.

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