Develop Bugs

[Q] Screen flickering (CRT like)

Hi,
EDIT
Resolved it (kinda), I shut the "Economy mode" and the screen stop the flickering....
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I'm creating a new thread for this problem got an answer there telling me it's my phone, but I would like to know if somebody else notice this.
It's like on good old CRT. Got a Note I (got stolen) bought a Note 2 and I can see a flickering, like if the display had a 60Hz refresh rate, never notice such a thing with the Note I.
It's more noticeable on white screens. And when you are using peripheral vision, by pointing your eyes like 10 centimeters from the side of the device, the flickering must be more visible
The effect looks like this http://www.youtube.com/watch?v=M3jHOwE8MqA not mine but can give an idea of the problem.
Thanks

Livebyte said:
YES I HAVE SUCH A PROBLEM.
I was worried sick that my phone might be going dead soon.
And I'm talking about Note 1 here.
I don't want to waste money on a Note 2. I don't want burn my wallet again! ):
Click to expand...
Click to collapse
Never notice it with my Note I, it seems that it's partly due to AMOLED technology, but as I did not notice it on my Note I...
Maybe it varies form device to device...
The effect looks like this http://www.youtube.com/watch?v=M3jHOwE8MqA

Livebyte said:
YES I HAVE SUCH A PROBLEM.
I was worried sick that my phone might be going dead soon.
And I'm talking about Note 1 here.
I don't want to waste money on a Note 2. I don't want burn my wallet again! ):
Click to expand...
Click to collapse
It's Float like a butterfly, sting like a bee.

Livebyte said:
Yes I have it, but mine is definitely more severe than yours.
Click to expand...
Click to collapse
Then why didn't you return it under warranty?

Go to Display > Features > Smart Rotation . Disable Smart rotation and voila the problem is resolved....

BoneXDA said:
It's Float like a butterfly, sting like a bee.
Click to expand...
Click to collapse
Don't feed the troll

Ok, so if you do not own this device the Note 2, and do not want the device, why chime in and post/comments...

My scraan is flickering too. Feels like old CRT TV. When brightness not at 100% level I can observe this problem. Looks like samsung using PWM to control brightness. I think this is terrible. And I hope this can be fixed by software (adjust brightness by gamma correction etc)

mine also sometimes flickering on the lock screen in the near clock area for about 0,5-1 sec. but no need to worry, i guess its a hidden samsung note 2 feature...

So there are no solutions to fix screen flickering? Maybe we can overclock screen somehow? Maybe alternative brightness control?

The screen flicker mus be due to a bad batch of screens. Mine had the screen flickering too. and even with economy mode shut down and brightness is set to less then 100%. if you rapidly move the phone you can see that you see several screens instead of a blurry moving screen. this way you know it flickers. so for example if you move your phone up and down very rapidly instead of seeing a blurry view of the screen you will see several edges of the screen simultaniously. this tells you its flickering. While just looking at the screen you wont actually see the flickering but its somehow disturbing.
The way i know that your screen is defect is because due to a rescent replacement of my screen on my note 2 the flickering is totally gone now.
But keep in mind that my battery usages with screen on has increased. so i think samsung changed the power management for these new screens so that they wont flicker anymore. but they consume more power now. first i used the screen 6,5 hours and had a standby of 24 hours. now i have 6 hours screen on time with 24 hours standby. so its a bit of a change though. I just tested it 1 time. so it could also be i used the phone in another way when getting only 6 hours.
But just to let you guys know the flickering can be fixed.

[Q] Anyone else experiencing AMOLED burn-in / Image retention?

Has anyone else experienced bad screen burn-in / image retention issues with their Note 2?
I've only had the phone just over 90 days, but I've already got some pretty severe burn-in. I use an app for equities trading several hours every day and after a few months of use, the icons and other parts of the app that remain static are plainly visible at all times on any screen that isn't completely black.
For now to slow it down I've re-themed the app and replaced as many static elements as I could with transparent .PNG files and no text.
Any idea if Samsung will replace the display under warranty for these types of issues? (From what I've been able to find, it sounds like they refused to cover it for the S3, then reversed their position and began covering it for some folks - curious what their policy is now)
Here's an example screenshot - this is a blank white screen. It's MUCH more noticeable in person.

Although I havent had it in my note 2 yet, my galaxy s2 had it. I went in to sprint and they swapped it for me because I had insurance. Didnt pay anything. Goodluck though.
Sent from my SPH-L900 using Tapatalk 2

I had it bad on my S2. The notification bar and active apps icons were visible on all white and blue screens and so was my keyboard. Sprint sent me home said they don't see that as an issue and the phone works fine so as long as it worked they don't care. Samsung on the other had took down notes then asked me to ship it to them. Never got to send though because the lady refused to be without a phone. As of now my Note 2 has been burning in the notification bar again after about a month of use. I think that's why they made the S4 notification bar the same as whatever ur background is.
Sent from my PG86100 using xda app-developers app

Because the damage cannot be reversed, try inverting your screen colors to see if you can get the other pixels to burn in and equalize. I did about 5 minutes of Google research and saw that the blue pixels burn out the fastest, so trying a negative color should burn the rest of them. Inverting colors can be found in Settings --> Accessibility or (in CM10.1) Settings --> Advanced (under device) --> Screen (tab).

smmiller506 said:
Because the damage cannot be reversed, try inverting your screen colors to see if you can get the other pixels to burn in and equalize.
Click to expand...
Click to collapse
Thanks for the suggestion..
I'm giving that a try, but I imagine it'll be hard to even out ~3 months worth of 4-6+ hour a day usage..

PoorHomey said:
Thanks for the suggestion..
I'm giving that a try, but I imagine it'll be hard to even out ~3 months worth of 4-6+ hour a day usage..
Click to expand...
Click to collapse
Probably, but it is a fix. Your only other option is to let it continue burning out the pixels as before, without inverting the colors, in the hope that you may be able to RMA/warranty the thing. I guess AMOLED screens are known to have this issue. Call up Sprint or Samsung and see what they will do if the problem gets worse.

smmiller506 said:
Probably, but it is a fix. Your only other option is to let it continue burning out the pixels as before, without inverting the colors, in the hope that you may be able to RMA/warranty the thing. I guess AMOLED screens are known to have this issue. Call up Sprint or Samsung and see what they will do if the problem gets worse.
Click to expand...
Click to collapse
All monitors will do it, given enough time.
Sent from my SPH-L900 using Tapatalk 4 Beta

Skripka said:
All monitors will do it, given enough time.
Click to expand...
Click to collapse
Apparently for Samsung's Amoled displays, "enough time" equals ~90 days of several hour a day usage.
I was aware that the display could suffer from burn-in/image retention, but I had no idea it would happen this badly and this quickly.

[Q] AMOLED Burn in

Hey guys.
U probably know i bought this phone about a week ago. Im facing AMOLED burn in with like 9hrs of usage everyday.
Do you guys face this kind of issues? Ot am i just overreacting.
Sent from mah AssForMini

TiTAN-O-One said:
Hey guys.
U probably know i bought this phone about a week ago. Im facing AMOLED burn in with like 9hrs of usage everyday.
Do you guys face this kind of issues? Ot am i just overreacting.
Sent from mah AssForMini
Click to expand...
Click to collapse
I don't have this kind of issue and having this phone since may

Aronuser said:
I don't have this kind of issue and having this phone since may
Click to expand...
Click to collapse
I guess Im just overreacting then. Funny cos yeknow how YouTube updated their app and when you tap on the search bar you see a plain white background (that if you paused search history). Well for me, I saw a kinda dark thick line running across the screen. Not obvious but a very very faint dark thick line.
Sent from mah AssForMini

I've got some burn in from using Waze as my navigation app for the past 9 months.

I'm facing near same problem...
My phone have very light black stripes on screen, especially at white backgrounds.

I use this phone for hours everyday since I got the phone, 1 year 3 months ago and don't have any similar problems.

Try downloading a video designed to free up pixels that are otherwise dead.
They're normally a few minutes long and alternate between bright red, green and blue at different intervals.

adrokon said:
Try downloading a video designed to free up pixels that are otherwise dead.
They're normally a few minutes long and alternate between bright red, green and blue at different intervals.
Click to expand...
Click to collapse
Does it really actually help clearing deat pixels?
Sent from mah AssForMini

Yes, I've used them previously on TVs, PSPs and phones - all successfully.
It may take multiple attempts but it should eventually bring them back..

Same here, status bar and the keyboard^^

[Q] screenburn

Help. I havr a screenburn on my lg g4 .
I use the opera browser. And the buttons are visseble while typing.
So i called my provider. They gona replace the device .
But why? this is a new phone uplauding pictures right now
Opera browser
https://onedrive.live.com/redir?res...authkey=!AO32iSIcJ4VDqVg&v=3&ithint=photo,JPG
burn in pictures
https://onedrive.live.com/redir?res...authkey=!AGZGMi2o3waD0wY&v=3&ithint=photo,JPG
https://onedrive.live.com/redir?res...authkey=!AEOft-Uq3x84f9g&v=3&ithint=photo,JPG
[https://onedrive.live.com/redir?res...authkey=!ACZ5r0vDo5AW-oU&v=3&ithint=photo,JPG

That burn in is really bad. It's got to be a problem with your screen, and not common to all G4s or we'd be seeing others complaining by now.
I've seen phones that bad in stores, but their screens are on all the time. How much screen time have you had with Opera running?
Good thing the provider is replacing it!

phineous said:
That burn in is really bad. It's got to be a problem with your screen, and not common to all G4s or we'd be seeing others complaining by now.
I've seen phones that bad in stores, but their screens are on all the time. How much screen time have you had with Opera running?
Good thing the provider is replacing it!
Click to expand...
Click to collapse
hmm not that long troug. if i use opera a while not it disappears almost completely.
use it agian 2 minutes. its bck
and restarting my phone does not help.
removing opera does also not help.
if i got my new phone no opera anymore.

I just can't believe that's from Opera alone. There had to be a problem with the LCD in your phone.
I understand if you don't want to risk it by using Opera anymore but I don't think it'll happen with your new phone.

robdgekke said:
hmm not that long troug. if i use opera a while not it disappears almost completely.
use it agian 2 minutes. its bck
and restarting my phone does not help.
removing opera does also not help.
if i got my new phone no opera anymore.
Click to expand...
Click to collapse
Lcd on mobile phones normally never get burnins, it's an amoled thingy (samsung phones) and it's an important reason I wont get a note 4 but a G4, so I really hope it was a single defective screen.
Did you try one of the screen retention fix app?
Did you try a factory reset? Call me crazy but it's not normal that a screen burnin doesn't affect white pixels, and it shouldn't do a green stuff, it could be a crazy bug
Sent from my HTC One M9 using XDA Free mobile app

vegetaleb said:
Lcd on mobile phones normally never get burnins, it's an amoled thingy (samsung phones) and it's an important reason I wont get a note 4 but a G4, so I really hope it was a single defective screen.
Did you try one of the screen retention fix app?
Did you try a factory reset? Call me crazy but it's not normal that a screen burnin doesn't affect white pixels, and it shouldn't do a green stuff, it could be a crazy bug
Sent from my HTC One M9 using XDA Free mobile app
Click to expand...
Click to collapse
yes i did try all of that.
did not help at all!
i got my replacement phone now. i am happy with it..
still really strange...

I just noticed a burn in My lg g4 also

So now its becoming more common is it
Sent from my LG-H815 using Tapatalk

robdgekke said:
Help. I havr a screenburn on my lg g4 .
I use the opera browser. And the buttons are visseble while typing.
So i called my provider. They gona replace the device .
But why? this is a new phone uplauding pictures right now
Opera browser
https://onedrive.live.com/redir?res...authkey=!AO32iSIcJ4VDqVg&v=3&ithint=photo,JPG
burn in pictures
https://onedrive.live.com/redir?res...authkey=!AGZGMi2o3waD0wY&v=3&ithint=photo,JPG
https://onedrive.live.com/redir?res...authkey=!AEOft-Uq3x84f9g&v=3&ithint=photo,JPG
[https://onedrive.live.com/redir?res...authkey=!ACZ5r0vDo5AW-oU&v=3&ithint=photo,JPG
Click to expand...
Click to collapse
mate this not burn in....This lcd backlight leak .Go to service.

kabirjedi said:
mate this not burn in....This lcd backlight leak .Go to service.
Click to expand...
Click to collapse
That's not "backlight leak" or "light bleed" as it's generally called. It's a bad LCD panel.
FYI This is how light bleed on the G4 can look like (It's mine).

I have a new device. So it's solved. But I see more people getting problems with the screen.

That's more likely to be just image retention and not an actual burn in.
Burn in = actual damage since the material gets burnt out than the rest of the other materials in the screen.
Image Retention = the liquid crystals on the LCD haven't fully returned to their original state for the meantime only.
A burn in commonly happens on crt, plasma, oled screens. For the reason that these technologies "burn" a specific material on their screen to produce output. LCD screens like IPS are very less likely to have burn ins but image retention is always possible but not permanent.

rvnlvrz said:
That's more likely to be just image retention and not an actual burn in.
Burn in = actual damage since the material gets burnt out than the rest of the other materials in the screen.
Image Retention = the liquid crystals on the LCD haven't fully returned to their original state for the meantime only.
A burn in commonly happens on crt, plasma, oled screens. For the reason that these technologies "burn" a specific material on their screen to produce output. LCD screens like IPS are very less likely to have burn ins but image retention is always possible but not permanent.
Click to expand...
Click to collapse
So is image retention common, because I've never had this problem until I got the G4 which is my first flagship: every other phone I've had was a budget and never had a problem like this.

I've never had image retention or burn in on any of my LCD phones but have had it on all my OLED/AMOLED phones.

F1Fanatic27 said:
So is image retention common, because I've never had this problem until I got the G4 which is my first flagship: every other phone I've had was a budget and never had a problem like this.
Click to expand...
Click to collapse
LG used this "Quantum Display" of theirs (A modified type of IPS LCD) which had a different arrangement of pixels and whatnots which would have likely been the reason why image retention was much more common on theirs than other manufacturers' IPS displays, but in return.. the color gamut of their display actually expanded in range and also provided less energy consumption.

Same here LG G4 "screen burnes" all the time!!! - previous screens stay faded over current screens, just like on my old plasma TV... WTF???

I don't know what is screenburn but sometimes I see vertical narrow black stripes popping for a second in the same place, any thoughts what this can be? Is that a faulty display or some software bug, anyone had this issue?

What did other people who had this issue?
Now I'm also having it. Own the phone since ~11month. I recognized it 2 weeks ago, researching the problem. Before I though it would be a graphic error.
Have the plan to write LG about my issue. But have rooted the phone the official way. I must lookt at the LG root condition, I think this is still covered by waranty even with root because of HW issue not caused by root.
BR

I had a image retention issues on my screen (few months ago came from service for bootlooping) AND I have bootloader officially unlocked. And they still changed my display. But I live in Finland EU and we have this mandatory 2 years warranty regardless of rooting the device. Only if they can proof that rooting caused the device to broke then its not covered by this mandatory manufacturer independant warranty.
But image retention or bootlooping aint such a case and they replaced my MB and now my screen.

It just shows how **** the G4 is in case of build quality, I have experienced screenburn and I'm after a bootloop issue as well, so glad my OnePlus 3 is coming at Monday. G4 has a great development and thats why I love it I wouldn't buy ever again.

note 2 screen burn in

Hi guys sorry if this has been addressed before on here I did search with no luck.
My note 2 has terrible screen burn which is common for amoled/oled screen it seems but is there any way of fixing it or at least making it better without buying a new screen ?, a new screen costs around £70+ which I can't seem to justify for a 3 year old phone, I do like it though and if there is anything I can try I will I might even get a new screen but will it just burn in again?....
I've seen burn in fixer apps on playstrore but I'm not too sure, any help greatly appreciated.

I don't think there is any way to get rid of burned-in images with software.

Thanks would you say it's worth replacing the lcd the full assembly is around �£70-�£100+ here in the UK ! I could get a excellent condition note 3 off eBay for �£150.
Would the burn in fixer apps make anything worse if I left it to run 8-10 hours? Should I be put off amoled displays now? This phone was lightly used since new for the past year and always kept on auto brightness what gives this phone is almost unusable on white screens.