iPhone is not recognizing sim
trying to update my phone and it says it cannot find the sim
iPhone 12 Pro
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it says it cannot find the sim
Just out of the blue?
Try this:
Remove and reinsert the SIM card.
If it doesn't help contact your carrier, maybe the SIM card is damaged, ask for a replaced (new) card. Normally it is free.
Als ask to check if the SIM tray is bent, as even a tiny misalignment can cause the SIM card to not fully connect with the internal contacts in your iPhone.
See also ⤵️
If you see No Service, Searching, or SOS on your iPhone or iPad
If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support
How to unlock your iPhone for use with a different carrier
How to unlock your iPhone for use with a different carrier - Apple Support