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What do I do if my cellular update failed and unable to make calls or receive messages
iPhone 7, iOS 15
The procedure is given here:
Manually update your carrier settings on your iPhone or iPad - Apple Support
If it still doesn't work, contact your cellular carrier for further help; you many need a different SIM card.
Hello
TRY
Shut down phone
eject & reinsert SIM
Restart
I have tried that for 3 months now
the procedure please
Cellular update failed
