What is the reason why the mobile phone suddenly broke down?

If you use a vivo phone, you can refer to the following methods for troubleshooting:

1, misoperation during the call.

If the phone is far away from the ear during the call, it will light up, and your finger or face may accidentally touch the hang-up button and hang up the phone.

2. Mobile phone card failure

If the mobile phone card is cut open by hand, the call may be interrupted due to irregular shape and poor contact. It is recommended to bring your personal ID card to the operator's business hall to apply for a standard mobile phone card. If the mobile phone card is dirty or oxidized, it will also lead to poor contact. It is recommended to keep the mobile phone card clean.

3. The operator's network is abnormal

Bad cell phone signal may cause call interruption, so it is recommended to make a call in an area with good signal. If the call is interrupted in the same place, it may be caused by an abnormal network in this area. I suggest you try again somewhere else.

4. Operator restrictions

If the call duration reaches 1 or 2 hours on the hour, it may be limited by the operator, so it is recommended to consult the operator.

5. It is recommended to open VoLTE HD calling service (contact the operator to open it).

If the local 2/3G call network environment is not good, it is recommended to contact the operator to open VoLTE HD call service and try again. When the VoLTE function is turned on, the HD icon will be displayed in the signal bar.

6. Other network reasons

If the call with the fixed person is interrupted, it may be that the other party's network signal is abnormal, or there is something wrong with the other party's call equipment.

7. Upgrade the system

Click Settings-System Upgrade to upgrade your phone to the latest version.

8. Restore all settings

Go to Settings-System Management-Backup and Reset-Restore all settings, and then follow the onscreen instructions.

* Note: Restoring all settings will not delete any data or media files, but only restore all settings of the mobile phone, and some third-party application accounts need to log in again. Please ensure that the use of the software will not be affected before operation. For the safety of mobile phone data, it is recommended to back up mobile phone data in advance before operation.

9, service center testing

If the above methods can't solve the problem, it is recommended to back up the mobile phone data in advance, take the mobile phone and purchase certificate to the vivo customer service center for testing, and go to the service outlet of official website app of mobile phone-Services-My Services-to find the address and telephone number of the nearest customer service center.