MF3 Root access and Unlock question from Noob
Recently purchased an AT&T locked S4. Needed it to be unlocked for T-mobile so after searching this forum, thought it was futile (baseband l337UCUAMF3). Went to a shop that said they could unlock my phone, paid $30 bucks. Got the phone back, it fully works on T-mobile (LTE and all) but I'm trying to figure out how they did it.
App drawer shows superSU, superuser and terminal emulator after I got my phone back, no previous history in superuser app. Downloaded Root Checker Basic from App store and it showed that it's not rooted.
Any way to figure out how?
Sorry if this was a repost, must've overlooked it during the searching.