My phone tells my no sim installed multiple times a day. I have to restart it and then it will work for a few hours.
How can I fix this?
iPhone 12 Pro Max
How can I fix this?
iPhone 12 Pro Max
If you see No Service or Searching on your iPhone or iPad
If you see No Service or Searching on your iPhone or iPad ...

Remove your SIM card from the SIM card tray and then put the SIM card back. ... Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.
If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad ...

Learn what to do if you see a SIM not supported alert.
If you see No Service or Searching on your iPhone or iPad
If you see No Service or Searching on your iPhone or iPad ...

Remove your SIM card from the SIM card tray and then put the SIM card back. ... Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.
If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad ...

Learn what to do if you see a SIM not supported alert.
Please get the SIM changed.
My phone tells my no sim installed multiple times a day. I have to restart it and then it will work for a few hours.