SIM card replacement problems
I have a new SIM card put in my old 10sx phone because my new phone was stolen. Trying now to match up my I watch with it and can not get it done.
Any suggestions as to what might be wrong?
Probably you have a locked iPhone
Carrier Lock:- Request your iPhone’s original Carrier to unlock your iPhone and if they agree and do it, then you may know the further process here --> How to unlock your iPhone for use with a different carrier ...
Device Unlocking Policies | Verizon Privacy Policy
Unlock a Phone or Device - AT&T Device Unlock Portal
Unlocking your Sprint device - T-Mobile