I can't seem to get a straight answer from C Spire. I have a C Spire iPhone 7+ on 10.2. I don't like the phone, it's simply too big for me to carry in my pocket. My son as the 7 but it's on Verizon. Verizon tells us we can simply swap the sim card. C Spire says I can't. They say their phones are locked and since I'm under contract they won't unlock it for us to swap. I was wondering if I jailbreak my phone will we be able to swap? Does jailbreaking unlock it from the C Spire network?