So I'm leaning towards going from ATT to Tmobile ( 2 lines @ $100 - Unlimited plan). I'm out of contract and I finance the phones through Apple's IUP. I can use my current devices on Tmobile since they are of similar networks (GSM). I sent a request to ATT for my devices unlock. They both were approved and the instructions were to do a backup and restore. I did an icloud backup and did a restore. I had to redownload all my apps, resync my apple watch, and etc. Why do I have to do a full restore to unlock my phone? Which backup restore type is better: icloud or itunes? I'm trying to find the best nonpainful way to restore an iphone without having to retype passwords, resync apple watch, etc. Is there a way I can check if my phone is unlocked?