Boot files being corrupted won't cause this. Possible soldering failure. The green flashing seems to suggest an SD loader issue somehow, maybe try a different SD card or try booting without it. Which modchip is this? Harder to help if we don't know.
Caller -"Everytime I start a Pc game on my S24, playing on a external monitor, someone calls or texts me, n it kicks me out of the game." Customer Support - Click (hangs up)
I found it funny cause many many years ago, had a roommate in college that did this same dumbass branding of the school logo, but it didn't look anything like it after it healed. Just looked like a birthmark.