My Sim is not supported
My Sim is not supported how
iPhone 7, iOS 14
Question marked as
If you get a "sim not supported" message on your iPhone, it means the iPhone is locked to a carrier / cellular / mobile service provider that is different to the one the SIM card is for. Only the carrier it is locked to can unlock it.
See here: link-> How to unlock your iPhone for use with a different carrier - Apple Support