Besides, any software problems and bugs can also result from the error.
Therefore, you’re not allowed to insert a SIM card from any other carrier. The main reason why your iPhone says SIM not supported is that your iPhone is locked to a carrier. The error SIM not supported always happens on a second-hand iPhone, and sometimes it even comes with the new iPhone. Possible reasons why iPhone says SIM not supported Contact your carrier and request an unlock.Bypass iPhone SIM not supported with iTunes.Quick workarounds to bypass SIM not supported on iPhone.Solutions to SIM not supported on iPhone 13/12/11.
Possible reasons why iPhone says SIM not supported.Here in this guide, you will be given useful solutions to bypass the issue with no effort. You are intending to insert the SIM card into your iPhone, but suddenly you receive an error message on iPhone, saying “SIM Not Supported”. How can I activate my SIM card cause every time I put in my SIM card, my phone says, “SIM not supported” even when I try to activate it.