Here I have a customers Galaxy Mega from AT&T, She claims she isn't rooting or installing any types of custom recovery on her phone, we replaced the board on the phone once, and she came back a day later with the same issue. The phone bootloops, but when I try to get into recovery it says "Unauthorized Software has been detected take it to the nearest AT&T store for help" She says the phone was updating, and it does this. This has happened twice now, and I've tried Odin back to stock, and Kies, but at no avail. What is the possibilities, or how can I fix this? Thanks.
I am not an AT&T Representative btw, but her Knox void counter says 0x1 (Which I guess means its tripped)
Usually we only deal with hardware repairs such as cracked screens or components, but we don't want to be left with a dead board.
Thanks for all the help in advance. How can I get this phone to at least just come back on?