How can I fix 'Invalid SIM' or 'No SIM' on iPhone?
sim problem
[Re-Titled by Moderator]
iPhone XS Max, iOS 18
Contact your carrier. Not Apple.
3 replies
Whether you have an invalid SIM or no SIM, you need to contact your cellular carrier for assistance.
If you have a iPhone with cellular, you need a carrier sim to use cellular.
How can I fix 'Invalid SIM' or 'No SIM' on iPhone?