is this possible? I got a barely used 1520 but I don't use AT&T directly, I used Net10 with an AT&T sim card. can you get it to 8.1?
if not, is it possible to get an AT&T gophone SIM and then get the upgrade and switch back to Net10 Sim?
if not, is it possible to get an AT&T gophone SIM and then get the upgrade and switch back to Net10 Sim?