My iPhone 6 has been acting up and is slowly rejecting a charge so I want to buy a used iPhone 5 and switch my active SIM card into it. I wanted to make sure it works or would I need to go to my carrier and have them do something on there end?
Read more: https://iphoneus.org/faq/can-i-switch-my-active-sim-card-from-my-iphone-6-to-an.html