[Android Central Question]

I've factory reset/wiped cache, launched in safe mode, download mode. Called samsung their fix is me go pay to get it fixed. I've used it for a solid 30mins and now its bricked brand new..

[B. Diddy]

Welcome to Android Central! Was this an official update pushed to your phone over-the-air, or did you update it some other way? Did you get the phone from a carrier, or unlocked from somewhere else?

[Fix my s8 plz]

it was an official update, its an unlock phone with att. i get it to work for a few hours by wiping cache / rebooting multiple times but takes an hours about to return phone just dont want to deal with wait of shipping there and back

[B. Diddy]

Do you know if the seller might have flashed a different firmware on the phone to make it compatible with AT&T? If the phone is updating with a firmware that's not intended for the exact variant, there's always a chance that something won't work right. It's probably impossible to check right now, but one way to determine this is to see if the model number in the Settings>About Phone menu (or embedded in the firmware designation) differs slightly from the model number on the box.