MetroPCS on tmo S4 - Not Registered On Network
Issue: Buying an M919 from craigslist, a friend, whatever. Popping your MetroPCS SIM in. Getting "Not Registered on Network" error. Go through hours trying various unlock steps.
The issue isn't your phone, once you've unlocked it such that you don't get a PIN entry prompt when popping in the new card.
This is specific to MetroPCS, that I've never run into before. They pair bond SIM-IMEI. If you want to put your metropcs SIM in another device, you need to call them or drop by a center. The instant that he made the change in his system, this phone that I'd been laboring over suddenly worked. Cost me $10 to do this. One way that a low cost service nickle and dimes you.