What should I do if my mobile phone can't answer the phone?

This situation is generally caused by poor contact between the mobile phone card and the mobile phone, and the treatment methods are as follows.

Replace SIM card

Replace the SIM to test and eliminate the problems caused by poor performance of the mobile phone card.

Restart the phone

Test after restarting the phone.

Detect call forwarding function

Detect whether to start the call forwarding function.

Restore factory settings

Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore the factory settings.

Inspection and maintenance

If the fault still exists, I suggest you take the three-guarantee certificate of your mobile phone and send it to the nearest mobile phone brand service center for inspection and maintenance.