[Q] Which model S4 do I have? (seriously)
I feel dumb for even asking such a rudimentary question, but here's the situation.
I bought an S4 from someone. There's an AT&T logo on the back (cover theoretically could have been replaced, who knows). He had Wicked v5 ROM on it when I bought it. The ROM said the phone was an SGH-M919 so that's what I've assumed. It was a T-Mobile ROM (had WiFi calling option etc). He was on AT&T Straight Talk, gave the phone to me, I popped in my AT&T SIM card and was ready to roll. That initially tells me the phone's SIM-unlocked.
Now I ditched AT&T and switched to Metro PCS. It wouldn't take the SIM until I unlocked the phone. (Metro PCS is on T-Mobile network now, so if the phone WAS a T-Mobile phone, it should have taken the SIM naturally with no problem). Also ODIN recognises it as a SGH-i337, which is the AT&T version and it refuses to flash the T-Mobile stock firmware tar.md5 file to the device.
So it seems I have the AT&T version after all.
Basically..... can the firmware lie and tell me anything it wants to? Which device do I actually have? I'm having trouble connecting to the Metro PCS 4G network locally and can only pick up Edge, so that's why I need to get the right ROM on my phone (to rule out all other possible problems of why it's not working.)