Chosen Solution
Lately my phone just keeps doing this, randomly. Sometimes it takes only few seconds, but sometimes it’s so annoying, because it’s like flashing, and in real it looks like the left side is on full brightness while the right one remains on that level what I picked. I also tried to took off battery and restart, etc but nothing seems to work. Attached pictures as reference
This is a defective backlight. This could be caused by a damaged/defective screen or it could be a logic board issue if the screen was recently replaced/repaired. If it is a screen issue, then the whole screen needs to be replaced.If it is a logic board issue, it can be repaired by a micro-solderer.
