SamKEY TMO
SamKEY TMO is special software for Unlock:
T-Mobile, MetroPCS, Verizon, Sprint, locked SAMSUNG phones
Which do NOT ASKING FOR NETWORK UNLOCK CODE,
and just Show : Invalid SIM Card (APP UNLOCK)
Few Major Clarification
* Only USB cable is required for unlock operation
* For S550TL you must have UART Cable
* This solution makes Phone PERMANENTLY UNLOCKED
* Phone will remains UNLOCKED even if you upgrade firmware
* Software will be locked on one pc with fingerprint
* You can change PC & Change fingerprint once in a week
* USB Sharing is not supported (Remote Unlocking)