Recently, I encountered a display issue with my S21FE. While visiting the store to have it fixed, I became curious about the cause of the problem. In this thread, I will share details about the issue and provide some tips on how to avoid green lines ...
You definitely can upgrade. Just check out this post beforehand,https://r2.community.samsung.com/t5/Galaxy-S/Fix-For-Greenline-Line-on-Display-issue-in-S-series/td-p/16629086?src=ShareByUserCM
