White/Green screen flickering on Note 20 ultra (after android 12 update)

[Nisaam]

Hi guys,

Anyone has the same experience as mine? This was never been dropped nor submerge to water and yet I am facing this kind of issue with my phone. I bought my phone last August 2020 (pre-ordered galaxy note 20 ultra).  I already brought this to one of the service center but they let me pay for damage replacement. I told them that this happened without any fault in my part. Disappointing since this is a flagship phone and a VERY expensive phone but yet it cannot give me a minimum of 3 years worth of no headache experience.

[メメWOLFメメ]

Found this apparently you're not alone..
https://r1.community.samsung.com/t5/galaxy-s/s20-white-screen-green-screen-problem/m-p/13885954

[メメWOLFメメ]

I dunno what could possibly caused the Amoled panel to flicker like that, but from experience working at Google Pixel support it might be a hardware issue possibly a flex cable or possible water damage. I know Note 20 is IP certified but all device with IP rating would overtime lose their rating due to the water gasket adhesive wearing out. So a unlucky drop of water might got into a compromised part of the IP seal and when it got inside it damaged the Amoled components.
And it also a possibility low chance a OS bug, since ya mention about it started after getting Android 12. I too had a bug but manage to fix it, after the update my device vibration motor stopped working, did everything I know but to no avail. I even reached out to Samsung CS but the agent just referred me to visit one of their service center. But thankfully I checked Reddit and got a solution to the bug, somehow the update toggled off the vibration option for the Android System..

[メメWOLFメメ]

Hopefully, it's a software bug, have you tried doing some basic troubleshooting?

- Reboot the device to safe mode
- Clear Cache or Cache Partition
- Did the *#0*# menu codes then tried the display test
- Tried the diagnostic option on Samsung Member
- Did a factory reset.

[Nisaam]

Ive done the following:

1. safe mode diagnostic - no success
2. soft system reset - no success
3. went to service center - no success since they will be charging me LCD replacement (EVEN WITHOUT PROPER DIAGNOSTIC. JUST SEING MY PHONE WENT LIKE THAT THEY CONCLUDED THAT LCD NEEDS REPLACEMENT), **bleep** would I pay for that **bleep** if it aint my fault.
4. Did display test and other diagnostic test - phone found no error (considered no success since white glitch seems still doing its **bleep** to my phone)
5. So I went home atleast will try the hard factory reset. - been observing for quite a while now and it seems the white glitch is not showing up. Hope it worked.

Will update for progress.

for samsung: please fix your flagship phone. I decided to go IOS after paying full on this phone.

[メメWOLFメメ]

I'm sorry to hear that, some tech support does that immediately jumped to what they think it is without doing any troubleshooting. I agree with that, and not only their flagship but their midrange too. I have a A52 and the frame is plastic which is fine but the made the sides a bit hollow, so when you gripped it like you normally would you could hearing creaking or clicking sound. It also feels like pressing a button. Imagine a hollow blocks that's how they made the sides of the frame to save cost, but other manufacturers who also uses plastics they atleast made it a sturdy without creaking noise..

[Felix_Zh]

how is the result, is it success for the hard factory reset?

[Felix_Zh]

how is the result, is it success for the hard factory reset?

[ethelyow]

same here. huhuhu never drop and submerge to water 😔😔😔

[Nisaam]

also note 20 ultra? what service center you are near? hope it's sm megamall so we can both go there and storm their cs. hahaha. just kidding.