Note 9 screen discoloring and showing grain after March 2020 update

[srikrishnap]

I am on Latest build of Samsung Note 9 - India, with March security update on board. 

I noticed that my screen shows grain whenever the brightness auto adapts to lower levels, it doesn't get normal until I keep it locked for some time and then unlock. 

Model code:  N960F (INS)

Baseband number: N960FXXS5DTB6

Software version: One UI 2.0

Build Number: QP1A.190711.020.N960FXXS5DTB6

Android Version: 10

I tried to keep the auto brightness (adaptive) to off and yet this is happening occasionally when watching videos or pictures or simply pulling down the notification bar. 

I also Factory reset it today and I found it is happening right from start - during the setup screens. 

I am pretty disappointed something like an update is pushed and that breaks the quality of a device! 

It's livable but very annoying when you are showing a picture to someone and suddenly you see the screen becomes discolored and there are grainy black lines all over the display. 

Troubleshooting steps undergone:

1. Switch off Adaptive display - Issue persists

2. Boot to Safe Mode - Issue persists

3. Did a Factory Reset - Issue persists

4. Turned off Dark mode - Issue persists

5. Connected phone to PC with USB debugging ON - Issue persists

6. USB debugging turned off - Issue persists

7. Developer Options disabled - Issue persists

8. Wipe cache partition - Issue persists

The colors only seem to deteriorate based on the brightness slider. I think some thing has changed in the adaptive lighting or brightness that is causing this. 

I dragged the slider from 0 - 100 I notice the grain when it hits 20% to 70% after that the colors are slightly better  though but as soon as I reduce I see the grains and dark lines back. 

This is seen only after March update. 

Has anyone else faced it?

[rahmat611w]

If dont want us to upgrade downgrade it then 😑

[rahmat611w]

what a PLAY SAMSUNG, YOU PLAY WITH CUSTOMERS TRUST LIKE THIS

[rahmat611w]

how can we reach a bigger platform and make this issue bigger so that Samsung can not address this as hardware issue

[RAISUL786]

I have the same problem from 6th may.

[luckymatt]

yes, facing this issue since March update,

[DUKE_]

Also same problem with me

[Abhijithyd]

I am facing the same issue from yesterday. Is there a solution yet?

[safique]

same here also note 9 screen discoloration problem is a software problem