You can't flash the USERDATA file by itself. You have to flash the full U firmware package, along with your desired USERDATAi flashed the att user data its didnt turn my s10e into a att one so how can i get my s10e a att one the verzion one worked just fine when i was using my phone on verzion but im using wing now there company uses actual att sims cards so if you can help please tell me how to flash it bc its flashed fine just no att just plain old unlocked firmware