SIM-Unlocked Galaxy S6 Got SIM-Locked by Samsung during warranty repair.
I send in my three week old Galaxy S6 for warranty repair about six months ago. I recieved it repaired but the technician had installed a T-Mobile ROM and locked the phone to T-Mobile. I have sent it back to the repair center seven times since only to recieve a phone that is still SIM-Locked every time. Samsung promised it would be fixed every time. US Federal Warranty Law states that if a product cannot be repaired in a reasonable amount of time that the manufacturer must issue a replacement or a refund but Samsung refuses. Don't buy Samsung products! The support is terrible.