I've had my 1520 for years, switched to the Note 4 when I was about to go into active duty. I'm flat done with android and trying to go back to my 1520 without going to AT&T. So I unlocked my 1520 through At&T with the intent of going to MetroPCS. Since then, constant bootloop after roughly 2 minutes. Battery drain, soft reset, hard reset, nothing. Tried the Windows Device Recovery Tool and it's not even detected. All sorts of different USB's, different ports, and different computers. Even my Macbook Air dual booted isn't registering it. The amount of time the phone is on, I try to connect to WiFi as well and nothing shows up for networks. Any ideas?