Samsung mobile phone can't answer the phone, can send and receive text messages, and can surf the Internet!

There are several reasons why the mobile phone can't answer the phone:

1. Turn off the phone again.

2. Take out the SIM card and clean the metal contacts of the SIM card with rubber. (Is the sim card in poor contact? )

3. Try to insert the sim card into this machine (regardless of whether the SIM card is aging or damaged).

4. Check whether the mobile phone is equipped with software such as security guards or incoming calls, uninstall it and try again.

5. Whether the attempt to update the version of the mobile phone system has improved.

6. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and dual-clear mobile phone (in the off state, press and hold the volume plus key and the off key, and then let go when the boot screen appears, and you can enter the recovery. Enter Recovery & gt Chinese > clear data > clear all data)

If it is still not recommended to bring relevant documents and invoices to the network engineer for inspection and maintenance.