[Q] SGH-I337 AT&T phone to T-Mobile Service Issues
Sorry if this is addressed elsewhere I am having issues unlocking this AT&T phone for a customer to use on T-MOBILE.
- MODEL - SAMSUNG SGH-I337
- CARRIER - AT&T
- BUILD - JSS15J.1337UCUEMK2
- KERN - 3.4.0-1921628
- BASEBAND - 1337UCUEMK2
- ANDROID - 4.3
Customer has no qualms about what is done to the phone, it only needs to work on T-Mobile. I just can't seem to find a good guide on how to get this done. I have tried TWRP with no success, all the 0011, 277..., 9090 tricks to just open up the sim to no avail. Anyone that could walk a noob like me through this process it would be greatly appreciated.