chip problem

If "chip" stays for SIM card, what happens when you try? What error message are you getting?

No SIM or Invalid SIM? :--> If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad - Apple Support

SIM not supported?:--> How to unlock your iPhone for use with a different carrier - Apple Support

No Service?:--> If you see No Service or Searching on your iPhone or iPad - Apple Support

Regards

Giulio

What do you mean by a chip? A SIM?

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