Unlock Samsung USA – All Levels Locks
From this service you can get unlock code of all Samsung USA (All Levels Locks) including NCK (Unlock code) and MCK (Unfreeze code). We only need 15-digit correct IMEI to retrieve the code.
Before placing the order, change the simcard and check, it should prompt for “SIM Network Unlock PIN” or “SIM Network Unlock PUK”. If you get message another than this, then it can not be unlocked, don’t place the order.