Sim not supported
Why does my iPhone 6s Plus say sim is not supported when I went to metro and bought a new SIM card and every time I enter it that’s what I’m getting ? I’m honestly not understanding it tho because my sister gave me the phone and she just had it on through metro and then she deactivated it the same day she gave it to me the next day I went a bought me a new SIM card from metro and made a account but my iPhone just won’t read the sim .
iPhone 6s Plus, iOS 14