Can I use the at&t sim card with a contract-free Tmobile iphone6 plus?
Can I use the at&t sim card with a contract-free Tmobile iphone6 plus bought from Apple online store?
Since there are only four options on the apple online store(contract with at&t, sprint, verizon, and contract-free T mobile). I am not available to sign up a at&t contract, but I am a at&t customer. And I just joined my friend's family plan, the at&t employee told me that I cannot switch to a iphone6 contract in 6 month.
So can I just buy a contract-free T mobile iphone6 plus from apple online store and use at&t sim card? Will it be OK with the at&t service and the 4G internet service?