Develop Bugs

Navy bar and Status bar burn ins :(

Well guys its happened. Its burned in and its really noticeable during videos and what not. Is there a way I can help it or do I have to get a replacement cause it makes me go crazy when I'm watching a video.

FrostyF7 said:
Well guys its happened. Its burned in and its really noticeable during videos and what not. Is there a way I can help it or do I have to get a replacement cause it makes me go crazy when I'm watching a video.
Click to expand...
Click to collapse
These 'burn ins' are reported often for the GNEX (or other AMOLED devices). I can see them myself on my 10 months old GNEX, not very clear though (maybe I just don't care enough). There are a few apps on the play store that supposedly revive the off-color sections. However, because of the fact the navbar and status bar on the same location >90% of the time, the burn ins will soon return. I'm not sure if you can claim these 'burn ins' under warranty, but even if you could, it's only a matter of time before named sections of the screen will burn in again on your fresh GNEX.

Yea that's what I have read when doing some research. And they probably wouldn't put it under warranty so I guess I should just get used to it.

Samsung has replaced my Gnex screen due to a burn in issue at the nav bar. I only had to send it in , not a question asked. I even offered to email them a photo showing the issue and they said it is not needed.
Sent from my Galaxy Nexus using Tapatalk 2

I just picked up a nexus second hand with screen burn, rang Samsung and they just said to send it in for replacement screen. They may of course send it back unfixed when I do, but I explained clearly what the problem was to their rep and they seemed to think it was covered by warranty.
Frankly it would be hard to see why it wouldn't be covered by warranty. They might assert that its just a matter of wear and tear, but I would say that if you follow the comprehensive instructions that come with it and a component stops working as expected within a year that its a question it should be covered by warranty.
(Bear in mind that the instructions are as specific as telling you not to suck the battery, paint the screen or microwave your device, but say nothing of how long to leave the screen on for.)
Of course if they say no it can be hard to actually assert your rights. But for most phone manufacturers its just easier to fix the thing.

Thanks for the replies guys I'll give them a call today.

I, personally, take the framework_res.apk out of whatever rom I'm about to flash...
Edit /res/values/dimens.xml Navsize values to 0...
And install LMTPIE.
This might even help reverse some burn in.

I got burn-in after just three months of pretty heavy usage. I knew it would happen, but it's still disappointing.
I'm getting really leery of buying AMOLED again, to be perfectly honest - as this also happened on my N1.

Wouldn't a transparent Nav bar and status bar prolong the life of the screen?
Sent from my Galaxy Nexus using xda app-developers app

In my nexus warranty card it stated that burn-ins are normal for all types of LCD and OLED screens after time and this issue is not covered by warranty.

Jubakuba said:
I, personally, take the framework_res.apk out of whatever rom I'm about to flash...
Edit /res/values/dimens.xml Navsize values to 0...
And install LMTPIE.
This might even help reverse some burn in.
Click to expand...
Click to collapse
Another way to remove the nav is add this line to build.prop qemu.hw.mainkeys=1

kristian93 said:
In my nexus warranty card it stated that burn-ins are normal for all types of LCD and OLED screens after time and this issue is not covered by warranty.
Click to expand...
Click to collapse
Lolwut?! They mention it's known to happen and say it's not covered? Let them deny someone. I'd take them to court. You can't mention something as a known or expected hardware failure and not cover it, rofl.
Sent from my AOSP Android 4.1.1 Galaxy Nexus.

Zeinzu said:
Lolwut?! They mention it's known to happen and say it's not covered? Let them deny someone. I'd take them to court. You can't mention something as a known or expected hardware failure and not cover it, rofl.
Sent from my AOSP Android 4.1.1 Galaxy Nexus.
Click to expand...
Click to collapse
Depends on how you look at it. It's not exactly a hardware 'failure' since the screen is still working at a level that does not impede with usage of the phone. It's just annoying (depending on who you ask). Compare it with a dead pixel on your brand new TFT computer screen. In some countries, this is not covered by warranty.
I'm not convinced that if someone in the Netherlands would take it to court, they'd win.

Now I'm scared my phone will soon before crap lol
Sent from my Galaxy Nexus using xda premium

[Q] Defective and warranty Problems

Just watch these to see what appears to be a major manufacturer defect. And the seller, B&H, wants me to bring it in 30 days within sale, which I cannot do because I do not live in USA or NYC where I bought it. Samsung has only US warranty on it.
I have some Youtube video, but cant add the links due to XDA policy
It is basically flickering and monitor is out of control
Change ROM?
Wait for new stock ROM?

joelmitchell8 said:
Just watch these to see what appears to be a major manufacturer defect. And the seller, B&H, wants me to bring it in 30 days within sale, which I cannot do because I do not live in USA or NYC where I bought it. Samsung has only US warranty on it.
I have some Youtube video, but cant add the links due to XDA policy
It is basically flickering and monitor is out of control
Change ROM?
Wait for new stock ROM?
Click to expand...
Click to collapse
If you dont have warranty and cannot change it either, then why not try changing the firmware. May be it will resolve the issue.
which android version are you on?

drag80 said:
If you dont have warranty and cannot change it either, then why not try changing the firmware. May be it will resolve the issue.
which android version are you on?
Click to expand...
Click to collapse
The Device ships with 4.4.2 or updates to it. And this is what available Stock Roms are. Samsung tech support said there are no downgrades or upgrades, which sounds like robotic responses. The problem with custom roms is that I can only use ODIN. So I am planning to flash a new stock rom from sammobile, but the region is different. What is odd has to do with the left corner of the monitor being very dim, then sometimes it isn't. Sometimes the screen flickers continuously like a Strobe Light. Of course this strobing is before and after I adjust settings. In my opinion, Samsung has produced too many products with many in the mediocre category rather than all resources focusing on one to be superior.
Were I still in USA, I'd return it to the store of purchase for full refund. Now that I cannot, I have to ship it for service, but this is unlikely happening until 11 months from now.

Same issue
joelmitchell8 said:
The Device ships with 4.4.2 or updates to it. And this is what available Stock Roms are. Samsung tech support said there are no downgrades or upgrades, which sounds like robotic responses. The problem with custom roms is that I can only use ODIN. So I am planning to flash a new stock rom from sammobile, but the region is different. What is odd has to do with the left corner of the monitor being very dim, then sometimes it isn't. Sometimes the screen flickers continuously like a Strobe Light. Of course this strobing is before and after I adjust settings. In my opinion, Samsung has produced too many products with many in the mediocre category rather than all resources focusing on one to be superior.
Were I still in USA, I'd return it to the store of purchase for full refund. Now that I cannot, I have to ship it for service, but this is unlikely happening until 11 months from now.
Click to expand...
Click to collapse
Well I had the same issue about the screen flickering seems to me as a faulty back light as it's not the screen itself, reason for this being if you install a screen recording app and record the screen while flickering and you play the video back the video wont show any flickering, unfortunately changing firmware wont help this issue.
Im from South Africa and my tablet came out with andriod 4.3, put custom firmware on can't remember which one, issue still occurred, then I upgraded to android 4.4 (P605XXUCNG1_P605OXXCNG1_SEE) still didn't solved the issue, running custom rom 4.4 (xkat) now still having the issue:crying:, but hey maybe you lucky and custom firmware works for you.
GOOD LUCK:good:

TheVirus1 said:
Well I had the same issue about the screen flickering seems to me as a faulty back light as it's not the screen itself, reason for this being if you install a screen recording app and record the screen while flickering and you play the video back the video wont show any flickering, unfortunately changing firmware wont help this issue.
Im from South Africa and my tablet came out with andriod 4.3, put custom firmware on can't remember which one, issue still occurred, then I upgraded to android 4.4 (P605XXUCNG1_P605OXXCNG1_SEE) still didn't solved the issue, running custom rom 4.4 (xkat) now still having the issue:crying:, but hey maybe you lucky and custom firmware works for you.
GOOD LUCK:good:
Click to expand...
Click to collapse
You are correct! Changing ROMS doesn't make a difference. Samsung said they have never heard of our problem. Please keep calling Samsung until you can get them to service it under the 1 year warranty. Did you purchase it locally or within your country? Mine has US warranty only, but I am in China working for next 11 months, so I can send it, rather expensive to do that and not sure if it would make it undamaged.
If you put stock rom, they warranty will still be valid. However, the issue never goes away.

Screen lighting issues
Hello , guys .
- the issue may be related to auto-brightness like on one of my devices tf701 ( deal with prop. settings ) , or brightness meter ( front camera )
- battery voltage management ( rare )
- and as you said the broken backlight of the screen .
i dont know anythong about other possibilities , actually maybe connectors issues.

joelmitchell8 said:
You are correct! Changing ROMS doesn't make a difference. Samsung said they have never heard of our problem. Please keep calling Samsung until you can get them to service it under the 1 year warranty. Did you purchase it locally or within your country? Mine has US warranty only, but I am in China working for next 11 months, so I can send it, rather expensive to do that and not sure if it would make it undamaged.
If you put stock rom, they warranty will still be valid. However, the issue never goes away.
Click to expand...
Click to collapse
I purchase it locally and my warranty is voided (knox), but last night I found out something very interesting, while playing clash of clans last night my screen started flickering again. WHILE the screen was flickering my hand moved over the light sensor (the little circle next to your front camera) and guess what happened.....jip the flickering stopped IMMEDIATELY as I moved my hand away from the sensor the flickering started again. So I guess the fault is with the sensor cause its duty is to adjust the screen (back light brightness) acording to the light condition.
So today I will remove the auto brightness setting use the tablet and see what happens, will give feedback.

181
TheVirus1 said:
I purchase it locally and my warranty is voided (knox), but last night I found out something very interesting, while playing clash of clans last night my screen started flickering again. WHILE the screen was flickering my hand moved over the light sensor (the little circle next to your front camera) and guess what happened.....jip the flickering stopped IMMEDIATELY as I moved my hand away from the sensor the flickering started again. So I guess the fault is with the sensor cause its duty is to adjust the screen (back light brightness) acording to the light condition.
So today I will remove the auto brightness setting use the tablet and see what happens, will give feedback.
Click to expand...
Click to collapse
I usually disable the auto brightness while attempting to get it working. The monitor no longer comes on now. I can fully charge it, hit start, hear noises and vibrations, but no monitor. All the flickering must have burnt it out.

FEEDBACK
joelmitchell8 said:
I usually disable the auto brightness while attempting to get it working. The monitor no longer comes on now. I can fully charge it, hit start, hear noises and vibrations, but no monitor. All the flickering must have burnt it out.
Click to expand...
Click to collapse
FEEDBACK: So after disabling the auto brightness i haven't had a single flicker so far, but now I must manually adjust my brightness every time my light condition change . As for you screen displaying nothing after switching it on and hearing the "noise" welcome sound i presume. Hold your table at different angles and see if i can see something.

TheVirus1 said:
FEEDBACK: So after disabling the auto brightness i haven't had a single flicker so far, but now I must manually adjust my brightness every time my light condition change . As for you screen displaying nothing after switching it on and hearing the "noise" welcome sound i presume. Hold your table at different angles and see if i can see something.
Click to expand...
Click to collapse
At certain angles the flashing does have more or less flashing, but this was before the screen turned black and stayed black.Now that the screen has burnt out, I had noticed a samsung screen attempting to go on when I push power. But basically it is a dead screen 26 days into owning the device, 5 hard resets later, hours with tech support, and nothing else to do. So I am taking a 3 hour bus ride to hand deliver it to the service center in Beijing, which is the closest center to my work where I will be until July.

LG G4 - Display problem on Gray color

I will atach photos of the problem, and is there any way whic could help me, it look like some pixels are freezed. This is most noticable on gray color.

james_007 said:
I will atach photos of the problem, and is there any way whic could help me, it look like some pixels are freezed. This is most noticable on gray color.
Click to expand...
Click to collapse
It is a screen burn ,i have tried to solve problem with Screen Burn-in Tool app from Play Store
but no success,this problem have also few my friends with lg g4,i newer buy any lg phone again, lg is better to produce tv sets and wasmachines because as phone manufactures sucks.

Same issue here too, it isn't necessarily burn in, more image retention I guess which tends to happen to some LCD's, tried all sorts of things to fix it, if anyone knows how to fix this that would be awesome
Guess we'll have to either get the device replaced or replace the LCD

BrandonSingh said:
Same issue here too, it isn't necessarily burn in, more image retention I guess which tends to happen to some LCD's, tried all sorts of things to fix it, if anyone knows how to fix this that would be awesome
Guess we'll have to either get the device replaced or replace the LCD
Click to expand...
Click to collapse
If it's retention the LCD won't have to be replaced. Just wait a little, and it's gone.

And it inst always there, it knows to disaper.
And one more thing, it constantly changin, for example now i see 12:30, and for 2 minutes i will see 12:32, not one picture burned in.
Sorry for my English, i hop you will understand what i trying to say.

Pfeffernuss said:
If it's retention the LCD won't have to be replaced. Just wait a little, and it's gone.
Click to expand...
Click to collapse
Its pretty bad retention if thats the case, not permanent...only really see it on grayish backgrounds....Ive left the phone off for days...switched it back on and within a matter of minutes my status bar is burned in lol

Same problem here pink burn that appears only on gray with a few minutes of use.
I was wondering if its just my device or not.
And now that i know that is the case i guess switching the phone display will not solve it.

I am getting this issue as well. Pinkish tint (when there is a light grey background) and image retention on the top of the screen and I can see those little icons. Did you get the problem after motherboard replacement due to bootloop issue? I am regretting my decision in purchasing LG G4.. :crying:

xzfzx said:
Same problem here pink burn that appears only on gray with a few minutes of use.
I was wondering if its just my device or not.
And now that i know that is the case i guess switching the phone display will not solve it.
Click to expand...
Click to collapse
It is the display, friend of mine replaced his and he no longer had this issue.
I think he ordered a $70 USD replacement off Amazon and did it himself since LG requested for him to send the phone to Taiwan.

windozeanti said:
I am getting this issue as well. Pinkish tint (when there is a light grey background) and image retention on the top of the screen and I can see those little icons. Did you get the problem after motherboard replacement due to bootloop issue? I am regretting my decision in purchasing LG G4.. :crying:
Click to expand...
Click to collapse
To be honest it does not really bother me,the only thing is that i can not put a gray wallpaper :/.
And when you mention this i think it actually started only after i got my motherboard replaced because of the bootloop but i might just did not notice until than..
And no regreting is needed alot of people that i know with s6 are not so happy about it..and the only other option was m9...so.....if you like me and had no choice the g4 was the smartest choice lol and i am quite happy with it...
BrandonSingh said:
It is the display, friend of mine replaced his and he no longer had this issue.
I think he ordered a $70 USD replacement off Amazon and did it himself since LG requested for him to send the phone to Taiwan.
Click to expand...
Click to collapse
Well i was talking about that, if you would give your phone to lg they will replace with the same display..so i dont see the point...
And the replacement displays you cant tell how are they as in brightness battery drain and color accuracy...
I guess if it will get worse than i will probably replace it..for now its fine enough lol

xzfzx said:
Well i was talking about that, if you would give your phone to lg they will replace with the same display..so i dont see the point...
And the replacement displays you cant tell how are they as in brightness battery drain and color accuracy...
I guess if it will get worse than i will probably replace it..for now its fine enough lol
Click to expand...
Click to collapse
Meh...it's really not a huge problem lol, it grew on me after some time and it doesn't bother me anymore
Hasn't gotten worse over the past 6-ish months or so, so I guess it'll stay this way
I'm from Jamaica so sending it to Taiwan is going to be a bit of a problem
But as for the replacement part, I definitely get what you're saying, I asked my friend about his for the purpose of this thread and he told me that the battery life is the same, brightness/quality is similar to the original display, worse case scenario if you need to change the screen I'd say go for it.

workaround
james_007 said:
I will atach photos of the problem, and is there any way whic could help me, it look like some pixels are freezed. This is most noticable on gray color.
Click to expand...
Click to collapse
I have found a some kind temporary workaround ( i don't know is that correct language expression in english so sorry for that )
Mainly here is what I did : I have flash latest SUPERXE kernel for stock rom android 6.0 from here , after flash from Play Store I have installed app Kernel Adiutor ,from the drop-down menu selected Screen section and aply this settings :
RED=230
GREEN=235
BLUE=235
Minimum RGB Value=35
Saturation Intensity= 30
Screen Hue=0
Screen Value= 125
Screen Contrast=127
After this no more red colored retention on gray background,not even in TWRP recovery.
This solution is only for rooted devices with unlocked bootloader,I hope this will help You
After kernel installation i have run few times antutu benchmark,so maybe this is also have influence on screen refresh.

redentor666 said:
I have found a some kind temporary workaround ( i don't know is that correct language expression in english so sorry for that )
Mainly here is what I did : I have flash latest SUPERXE kernel for stock rom android 6.0 from here , after flash from Play Store I have installed app Kernel Adiutor ,from the drop-down menu selected Screen section and aply this settings :
RED=230
GREEN=235
BLUE=235
Minimum RGB Value=35
Saturation Intensity= 30
Screen Hue=0
Screen Value= 125
Screen Contrast=127
After this no more red colored retention on gray background,not even in TWRP recovery.
This solution is only for rooted devices with unlocked bootloader,I hope this will help You
After kernel installation i have run few times antutu benchmark,so maybe this is also have influence on screen refresh.
Click to expand...
Click to collapse
@redentor666
thanks man thanks sooooooooooooo much

It is a hardware issue. I got a new screen from the service centre.

redentor666 said:
I have found a some kind temporary workaround ( i don't know is that correct language expression in english so sorry for that )
Mainly here is what I did : I have flash latest SUPERXE kernel for stock rom android 6.0 from here , after flash from Play Store I have installed app Kernel Adiutor ,from the drop-down menu selected Screen section and aply this settings :
RED=230
GREEN=235
BLUE=235
Minimum RGB Value=35
Saturation Intensity= 30
Screen Hue=0
Screen Value= 125
Screen Contrast=127
After this no more red colored retention on gray background,not even in TWRP recovery.
This solution is only for rooted devices with unlocked bootloader,I hope this will help You
After kernel installation i have run few times antutu benchmark,so maybe this is also have influence on screen refresh.
Click to expand...
Click to collapse
This worked for me, too Thanks for sharing.
Anyway I will try warranty soon.

Dear guys, 12/2015 I have same issue that burning, my local warranty service ok change a new LCD, it is very OK after replacement, no burn any more. But after 6 months the same issue come back, it is hardware issue. LG always have issue about hardware in flagship more than other competitor.

Not a G4 owner but I have used a G4 before as well as a V10 and a G5, currently own the V10. This issue is present on all three devices and isn't a question of if it will happen, it's a matter of when it will happen. I noticed this issue with my display a few months ago and the entire affected area has a weird yellowish hue to it which is most noticeable on a lighter grey hue and as of now have grown used to it to a degree: still annoys me a bit. Also had a friend whom I recommended the G4 to and he had this issue with retention since he got it though he barely notices it since his phone is almost always set at 0% brightness
Anyways, at this point the main cause for this as I've said in a couple of threads is the display technology itself. I'm guessing this is one of the side effects Quantum Display has for offering near-amoled quality with vivid colors and blacks in comparison to regular LCD panels. Basically, even replacing the display is a temporary issue and still a lottery as you may get one with no issues until a year later or one that already has retention out of the box.
At this point, I might even tolerate amoled displays or non-Quantum Display lcd panels but it's too bad LG makes great phones. Oh well, just another thing to keep in mind when getting a phone from LG

xzfzx said:
To be honest it does not really bother me,the only thing is that i can not put a gray wallpaper :/.
And when you mention this i think it actually started only after i got my motherboard replaced because of the bootloop but i might just did not notice until than..
And no regreting is needed alot of people that i know with s6 are not so happy about it..and the only other option was m9...so.....if you like me and had no choice the g4 was the smartest choice lol and i am quite happy with it...
Well i was talking about that, if you would give your phone to lg they will replace with the same display..so i dont see the point...
And the replacement displays you cant tell how are they as in brightness battery drain and color accuracy...
I guess if it will get worse than i will probably replace it..for now its fine enough lol
Click to expand...
Click to collapse
I started getting this burn in and i am 95% sure that it didn't happen before. My G4 was in bootloop so i sent it back and i think that they replaced motherboard. After about 2 months of usage i started noticing this and as i said i am 95% sure that it didn't happen before motherboard was replaced, only if i didn't realise that but i am sure there was not this problem. :/ :/ :/ Is it actually possible that it is coz of motherboard replacement and that it can't be fixed even if i replace screen?!?! ((

FeederEater said:
I started getting this burn in and i am 95% sure that it didn't happen before. My G4 was in bootloop so i sent it back and i think that they replaced motherboard. After about 2 months of usage i started noticing this and as i said i am 95% sure that it didn't happen before motherboard was replaced, only if i didn't realise that but i am sure there was not this problem. :/ :/ :/ Is it actually possible that it is coz of motherboard replacement and that it can't be fixed even if i replace screen?!?! ((
Click to expand...
Click to collapse
It's not a motherboard issue but a display issue. With the G4, V10, and G5, there will be displays that will have retention out of the box or in a matter of a few months and then those who don't get it until 2 years into use or in fact, never at all. Only solution is replacing the display but that's a bit of a lottery in it of itself as you don't know if it won't have its own issues and I'd imagine constantly buying new LCD digitizers to grow costly that you might as well just buy a new phone altogether.

Bluelight Filter
Try " Bluelight Filter " app from Google store , I had the same problem until I used the app .

How to make a warrant claim in UK

I need to make a warrant claim for my Pixel 2 XL in the UK and I don't know where to find the details of how to start the claims procedure or process.
Google's website takes me here;
g.co/PixelPhoneWarranty
But that just lists the warranty conditions - how do I actually put in a request to make a claim?
I bought my phone through EE, but I want to use Google directly rather than EE as they're rubbish and haven't been helpful. Plus if they replace my phone it may come back with an unlockable bootloader ?
I've got very bad blue shift and unresponsive screen edges. I'm on 8.1 android which was supposed to fix the screen edges, but it hasn't for me.
My build date is 30/09/2017 so it's a very early build.

danlat1415 said:
I need to make a warrant claim for my Pixel 2 XL in the UK and I don't know where to find the details of how to start the claims procedure or process.
Google's website takes me here;
g.co/PixelPhoneWarranty
But that just lists the warranty conditions - how do I actually put in a request to make a claim?
I bought my phone through EE, but I want to use Google directly rather than EE as they're rubbish and haven't been helpful. Plus if they replace my phone it may come back with an unlockable bootloader ?
I've got very bad blue shift and unresponsive screen edges. I'm on 8.1 android which was supposed to fix the screen edges, but it hasn't for me.
My build date is 30/09/2017 so it's a very early build.
Click to expand...
Click to collapse
Contact Google store support and explain the situation to them. You can go to settings and the scroll all the way down. Select support and tips and you should see an option to call or chat with Google support.

You can contact support through the help menu in the settings on the phone. Took me less than 20 minutes to get them to agree to replace my phone under warranty

Thanks, I did that but they have refused to consider my claim.
I have unresponsive edges on my screen when playing games - mainly in the corners and severe blue tint.
They say blue tint can't be changed (which is fine but mine is quite severe compared to others) and the touchscreen is software related so I should submit a big report.
What are the reasons other people have returned theirs and been accepted?

Grindboy said:
You can contact support through the help menu in the settings on the phone. Took me less than 20 minutes to get them to agree to replace my phone under warranty
Click to expand...
Click to collapse
What did you replace yours for? What was your issue?

danlat1415 said:
What did you replace yours for? What was your issue?
Click to expand...
Click to collapse
Black smearing on the screen at low light levels, looked like ink blotches at the side, full thread with photos here: https://forum.xda-developers.com/pixel-2-xl/help/bad-backlight-uniformity-t3708026

Google have now agreed to replace my Pixel 2 XL after speaking in chat and sending them some photos of the issues.
How long does the replacing process take? They're doing the standard RMA because I bought mine from a third party seller. I'm just worried about it being stuck in Christmas post or them receiving mine and being closed over Christmas so I'd be stuck with my ancient spare

Severe brightness issue (screen largely unusable)

Hi all, I have a problem with my stock T-Mobile US S9. A few months ago this weird thing happened where if I turned on my screen immediately after it turned itself off, only the top few lines would be visible. The whole screen would take input, but you could only see a little below the status bar, maybe. If I waited a bit and then turned the screen on, it would work normally, with the whole screen visible and looking fine.
It's gotten progressively worse to the point where this happens most of the time I turn the screen on. However, I've found two workarounds:
1) My Always On Display is set to turn on when I tap the phone. If I do that, the AOD works as normal, and if I then turn on the phone screen the phone screen works fine. This only works when Always on display is set to turn on on tap. It does not work if AOD is set to always be on.
2) If, when my screen is glitching out I hold the screen up to a reeaally bright light (like inches from a lightbulb), the rest of the screen turns on. It's weirdly green tinted and kind of stuttery.
Turning off automatic brightness does not fix this issue. If tried booting in safe mode and even factory resetting the phone. Issue still persists, including on screens like when the phone enters recovery mode.
The fact that I can get the screen working normally using workaround #1 makes me think this is a software issue, but the fact that it happens on the recovery screen makes me think it's pretty low-level. Any ideas? Anyone else had a similar issue?

I gave Samsung tech support a call and the level 1 tech I spoke with seemed to think that it was a software issue and that I should bring it in to be looked at by a technician. I'm in Maine at the moment and there's no Samsung or UBreakIFix stores within two hours, so she suggested taking it to Best Buy to look at. Not amazingly helpful or surprising.
If it's a software issue though... I mean this is my fourth Android phone and I've rooted and flashed ROMs on all the previous phones anyway. I don't want to lose Samsung Pay, so I'd rather not unlock the bootloader, but is there a way to flash the stock operating system or something? The exact model number is SM-G960U

It's a firmware or hardware issue not software as a reload* would have fixed it.
The firmware has been corrupted (needs reflashed) or there's been a hardware failure.
Best to send it in for repair or take it the a Samsung Experience Center as they can reflash the stock rom and have advanced diagnostic tools.
*make sure all system apks are running on factory load and have not been updated after the reload.
Updates, destroyers of worlds...

blackhawk said:
It's a firmware or hardware issue not software as a reload* would have fixed it.
The firmware has been corrupted (needs reflashed) or there's been a hardware failure.
Best to send it in for repair or take it the a Samsung Experience Center as they can reflash the stock rom and have advanced diagnostic tools.
Click to expand...
Click to collapse
If that’s really necessary I’ll do it. But the closest place is out of state and when I called them said it would take 4 hours just to do a diagnostic. That plus the round trip... if there’s a way I can save some time, I’d like to.
For example, if one possibility is a stock firmware reflash, that’s something I’ve never done before on a Samsung device, but not very different from things I feel comfortable doing. I've flashed roms and rooted many android devices in the past. From a preliminary search , it looks like there's even a leaked tool online to do so from Samsung called Odin and that I just need to find the latest SM-G960U image with the right "csc" code for my carrier (I think TMB for T Mobile US). What would be even better is if one of those diagnostic tools you mentioned leaked the same way that Odin did.
Any recommendations on either diagnostic software or firmware reflashing? Or would you strongly advise leaving that kind of thing alone? I would like to still use things like Samsung Pay at the end of all this.

jptiger said:
If that’s really necessary I’ll do it. But the closest place is out of state and when I called them said it would take 4 hours just to do a diagnostic. That plus the round trip... if there’s a way I can save some time, I’d like to.
For example, if one possibility is a stock firmware reflash, that’s something I’ve never done before on a Samsung device, but not very different from things I feel comfortable doing. I've flashed roms and rooted many android devices in the past. From a preliminary search , it looks like there's even a leaked tool online to do so from Samsung called Odin and that I just need to find the latest SM-G960U image with the right "csc" code for my carrier (I think TMB for T Mobile US). What would be even better is if one of those diagnostic tools you mentioned leaked the same way that Odin did.
Any recommendations on either diagnostic software or firmware reflashing? Or would you strongly advise leaving that kind of thing alone? I would like to still use things like Samsung Pay at the end of all this.
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If it's under warranty let Samsung deal with it. A good tech with experience is invaluable.
Rather then waste time the extra ride might end up being the easiest solution. You could also next or 2nd day it to the center and back, make sure it's insured and packaged well.

blackhawk said:
If it's under warranty let Samsung deal with it. A good tech with experience is invaluable.
Rather then waste time the extra ride might end up being the easiest solution. You could also next or 2nd day it to the center and back, make sure it's insured and packaged well.
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Click to collapse
That makes complete sense for something under warranty, but unfortunately my phone isn't. The S9 is about three years old now, and the Samsung rep was quick to tell me that the device was no longer covered. It looks like a mail-in repair service would cost about $175, which I'm theoretically willing to pay, but not if I can just handle on my own for free.

jptiger said:
That makes complete sense for something under warranty, but unfortunately my phone isn't. The S9 is about three years old now, and the Samsung rep was quick to tell me that the device was no longer covered. It looks like a mail-in repair service would cost about $175, which I'm theoretically willing to pay, but not if I can just handle on my own for free.
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In that case you have nothing to lose by reflashing it. Hopefully that gets it.
Otherwise it be hardware... probably a good chance this actually the cause.
The good news is the 9's are available for a couple hundred in good condition if need be.
I was considering getting the 9 as a second phone (have the 10+) as the 10+'s haven't come down much in price.
Samsung current lineup sucks.

Huh. Well, before reflashing, I tried something I found other people suggesting for a related problem: https://eu.community.samsung.com/t5...t-bars-black-screen-issue/td-p/1745470/page/7
It's an app called OLED Saver. It's not perfect, the screen still has an odd green tint to it unless I use one of the tricks I was describing above. But I no longer have the issue where most of the screen isn't visible.
I might try reflashing anyway, will post results if I do.

Yeah, no joy. Reflashed by downloading the latest firmware using Frija for SM-G960U with TMB as the CSC, and flashed using Odin v3.13.3. If anything the problem is slightly worse now, but OLED Saver still mostly seems to fix it. I guess it's just a hardware issue with a weird software workaround...

Same type of brightness problem here as you describe, on my new S9 (G960U) - - Model starqltesq - CSS XAA
The product is under guarantee, but as it is imported from Hongkong to France, I don't have accesss to the Samsung local representatives and have probably to send it back to Hongkong ...
I will keep you updated if I learn something about the problem and the solution ....

Wiping the cache partition stopped this happening for me for around 24 hours but it came back this morning. On the Note9 forums someone posted that setting animations to .5 in dev options fixes this. I will try it.

Bhonka said:
Wiping the cache partition stopped this happening for me for around 24 hours but it came back this morning. On the Note9 forums someone posted that setting animations to .5 in dev options fixes this. I will try it.
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Disable animations instead. It wastes resources. Personally I like seeing a fast, snappy OS do it's thing with no middle man needed. Lol, you end up waiting for the animations rather than the OS.

I've heard of people flashing custom roms and that resolved the issue permenetly, but can't find anyone willing to give some real feedback. I posted a topic asking this question, but haven't gotten any replies..

Not very helpful, but a work around could be to use Screen Filter

I temporary fixing my S9+ green screen issue by uninstalling the NFC module.
Unfortunately, this option make us cant charging the phone.
Maybe some one expert in hardware mod can do better.

Eve&Me said:
I temporary fixing my S9+ green screen issue by uninstalling the NFC module.
Unfortunately, this option make us cant charging the phone.
Maybe some one expert in hardware mod can do better.
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Hey could you explain what exactly did you uninstall and how?
After uninstalling it wireless charing stopped working or what did you mean by cant charge the phone?
Did it fully resolve the green screen issue?

Some people noticed that problem after upgrade Android 9 to 10.
At this moment we have some facts:
1) OLED saver temporary solves problem
2) disconnect NFC module solves problem, some people on xda and on the yt confirm that
3) heating back cover using heat gun can help - I Discovered that some weeks ago
Interesting comment from the yt:
Sour Words
Sorry to say this, but green screen issue is a hardware fault not something an update can fix. One of the updates from Samsung is causing the CPU to over heat and in return permanently damaging the oled screen. Not only that but also compromising the battery as well. The only fix is the replacement of both the oled screen and battery. This repair is entirely the fault of Samsung due to a faulty update that over works the CPU capacity. Therefore my advice is for you to return your device back to Samsung and lodge an assessment request. They charge a small fee for the assessment, but the entire repair should be compensated by Samsung. Be firm and keep the pressure via emailing them to insist on Samsung covering the repair costs. My Note 9 is almost 3 years old when green screen issue happened. They fixed the entire thing free of charge. But I kept firm and didn't let them bully me into charging me for the repairs, which was their fault in the first place. I must admit, my phone despite its age, is in perfect condition. Not a scratch on it. Which I know contributed winning my argument for the repairs. So if you have psychical damage, I doubt you will have a chance. Good luck to all who will give this successful method a go.
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mreminemfan4ewver said:
Hey could you explain what exactly did you uninstall and how?
After uninstalling it wireless charing stopped working or what did you mean by cant charge the phone?
Did it fully resolve the green screen issue?
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Click to collapse
When we disassembly NFC Module, the phone will give LOW TEMPERATURE warning. And make us cant charge the phone