Forum Discussion
iPhone 12 sim question
Hi, I recently got an iphone 12 pro to replace my iphone X. In the past i have always just moved my sim card to my new phone and called it a day. After some reading it seems i need to use the new sim...
With the new SIM in your iPhone, write down the ICCID number found near the bottom of the list in Settings->General->About. Then put your old SIM that still has service back into the phone so you can receive the verification text message, and move ahead with the SIM change process in your online account. The ICCID number is what you need when it asks for the new SIM card info. You can put the new SIM back into the phone when you're done, it doesn't have to be in the phone while changing it online. The 5G compatible SIM card has "R15" printed on it.
