OnePlus India — One plus 8 started green screen tinting and flickering black crush after os 12 upgrade

Address:

Vadodara Gujarat

I have been using the oneplus 8 since June 2020. The experience was good untill the recent update came. After the update the phone screen suddenly started flickering and turning green. When I went to the one plus experience store they just reseted the phone and gave back for one day it worked fine then again the phone screen started turning green. And when I called them again they said you have to replace the display and pay the 14000 rs for it. My device has never taken any water or drop damage. They said we know but you have to pay. Is oneplus deliberately trying to destroy the old devices or want to make money out of this. Disappointed in one plus and it's services. They are reluctant to accept their mistake even though the problem have occurred with many devices. They should atleast release a statement and provide with replacements.

I am also sharing a video of the problem.
Build number : IN2011_11_C.35