Revert to Stock Rom using TWRP?
So I have a Galaxy S3 i747(at&t) rooted and with an unlocked bootloader. Currently running Cyanogenmod with TWRP recovery.
I'm trying to downgrade back to Touchwiz for the purposes of using an unlock code that AT&T provided me with (apparently it doesn't work with AOSP roms). Any chance I could safely use TWRP to flash the stock rom, and then use TWRP to flash Cyanogenmod back right after?
I've read from here and there that flashing the stock room with an unlocked bootloader and/or flashing the stock room NOT using Odin could brick the phone, etc etc.
Sorry if this question has been answered quite a few times, I've seen quite a few different answers regarding this floating around.