How to solve the problem of mobile phone network impassability

There are many reasons why the mobile phone shows that the network connection is unavailable. There are four common reasons:

(1) The mobile phone cannot be searched and registered.

(2) Network data is not open.

(3) The 3)SIM card is old or damaged.

(4) Failure caused by software.

Solutions to common causes

0 1. Mobile phone cannot be searched and registered.

It can be as follows: restart the phone and let the phone search for registration again.

02. The network data is not opened.

As follows: turn on the mobile phone network and check whether the mobile phone network is turned on.

03.SIM card is old or damaged.

Try another card. If it still doesn't display, put the card on another mobile phone. There may be something wrong with the card slot.

04. Failure caused by software

Back up mobile phone data (phone book, SMS information, multimedia materials, etc.). ) and restore the phone factory settings (excluding software reasons).

If you try the above methods, the problem still exists. It is recommended to contact the mobile phone service center with the purchase invoice for testing.