How do I switch SIM card on iPhone pro 14?

Hello BreezyBrett!

If the Related Article above your name was of no assistance, then please contact your Carrier for further instructions. After all, they make a living off of making sure people can switch SIM Cards. 😊

I hope this is helpful. Good Luck!

If you are going from a physical SIM card to eSIM, then follow this support article:

About eSIM on iPhone - Apple Support