Thank you for this. I've been looking for an answer to this question, but I've found conflicting answers.
So, I currently have an unlocked iPhone 7 Plus on AT&T, and I want to buy the iPhone X. I would like to buy the TMobile iPhone X for full price (from Apple) so that I don't have to enter carrier account information to speed up the order process, and I intend to remove the TMO sim and use my unlocked AT&T sim in the iPhone X. If I understand correctly, this should work without a problem?
[doublepost=1508960413][/doublepost]
Reviews usually post on the Tuesday or Wednesday after preorder and before availability.