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?
I have my phone for about 1 year and 3 months now. I have honestly not used this phone to the extent It should cause a display failure. I am quite unconvinced that my usage could have led to the display burn in. I am however trying to attach a picture if possible to this thread so everyone can see what am referring to.