I have a Sprint iPhone 5 running iOS 6.1. I am no longer with Sprint and services are disconnected. I just got off the phone with T-Mobile sales. They are sending me an activation kit with a Micro SIM. I was told to take that SIM to a T-Mobile store and swap it out for a Nano SIM for the iPhone 5 and activate there in store. Put the Nano in my iPhone 5 everything should be fine. By the way, I am going with the $70 Unlimited Pre-paid Everything.
Question 1: I was told there was no reason to unlock the iPhone 5. Was told the 5 is basically already unlocked. Pop in the T-Mobile Nano and everything should be fine. Is that true? I believe I will have to manually change MMS settings and a few others.
Question 2: Sprint is CDMA. I was told the 5 will automatically switch over to GSM upon inserting the T-Mobile SIM when I get it. Is that true?
Thanks in advance for all answers and input!