My mobile screen us getting flicker and also getting yellow screen it's very continuous after few days of samsung new one ui latest update Android 12 I need reply either is that software or hardware issue

I have lost the back side colour of samsung m51 mobile at edge I only used this mobile for a year and I bought for 23k@samsung answer to my question why it happened

Please bring Android 12 version as quick as possible without lags and framedrops we are facing few frame drops during multi tasking and playing games so Please bring lag free ui

Please bring Android 12 version to Samsung galaxy m51

Respected Samsung please bring textual part in always on display for better animation in m51 as realms x2