Can you do a favor for me? I have this situation: This favor is for somebody who tommorow will be have a new iPhone 6S T-Mobile version from OFFICIAL Apple Store in U.S. pay as FULL PRICE. Could you 100% confirm that T-Mobile version can be FIRSTLY activate with another NON T-Mobile sim card? So if is activation unlocked for different carriers? Thank you fery much for 100% authenticated experience!