Vivo mobile phone can't make calls, can't answer the phone, and can send text messages. What happened?

If you can't answer all the calls, please refer to the following methods for troubleshooting:

1, check the cell phone signal

If the mobile phone uses a metal or magnetic protective case or bracket, such a protective case and bracket will affect the signal of the mobile phone. It is recommended to take it off and try it. If you are in underground parking lots, elevators and other environments, the coverage of mobile phone signals is easily affected by these environments, the signal will be weak, and the data network will also be affected. I suggest you go to an open place, such as an outdoor open environment for testing.

2. Switch flight modes

You can try to switch flight modes, re-register the network and try again.

3. Check whether the Do Not Disturb mode is turned on.

The phone is in Do Not Disturb mode, and the incoming call does not ring. Go to Settings-Sound and Vibration-do not disturb mode, please turn off the function and use it to check.

Note: After the Do Not Disturb mode is turned on, when the mobile phone is in the off-screen status bar, the incoming call will not ring and the screen will not light; Only when the screen is bright will the incoming call icon be displayed at the top of the screen.

4. Confirm whether the mobile phone is equipped with the harassment interception function.

Enter I Housekeeper-Utility-Harassment Interception-Telephone Interception, and check whether to set blacklist/intercept incoming calls from strange numbers/intercept incoming calls from location/intercept incoming calls with empty numbers/intercept incoming calls from overseas/intercept incoming calls by initial numbers/intercept incoming calls by origin.

5. Check whether the third-party mobile phone housekeeper software is installed.

If third-party mobile phone housekeeper applications are installed, such as 360 mobile phone guards, Tencent mobile phone housekeeper and other software, and the call interception function is set, it is recommended to uninstall such applications for viewing.

6. Confirm whether the mobile phone card has call barring service.

Some operators' calling cards have call barring service. If the calling card restricts incoming/outgoing calls, some or all calls will be restricted. Please consult the operator's customer service for details.

Note: Enter Settings-Applications and Permissions-System Application Settings-Telephone-call barring, and check whether call barring is enabled/Enter Settings-Applications and Permissions-System Application Settings-Telephone-Operator-related Call Settings-(Mobile/Unicom/Telecom)-call barring, and check whether call barring is enabled.

7. Confirm whether the call forwarding function is enabled on the mobile phone card.

If the call forwarding function is enabled on the mobile phone card, the incoming call will be transferred to other phone numbers, so the call cannot be answered.

Note: Enter Settings-Applications and Permissions-System Application Settings-Telephone-Call Forwarding, and check whether the function/Entry Settings-Applications and Permissions-System Application Settings-Telephone-Operator-related Call Settings-(Mobile/Unicom/Telecom)-Call Forwarding is enabled.

8. Confirm the status of the mobile phone card

Ensure that the phone bill balance of the mobile phone card is sufficient. If the phone bill expires, please restart the phone after the recharge is successful.

9. 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.

10, comparison test

If the mobile phone card is installed in other mobile phones for comparative testing, if this phenomenon exists, it may be caused by poor network quality in the local area, so you can move to other places and try again.

1 1, upgrade the system.

Please go to Settings-System Upgrade (some models need to go to Settings-My Device-iKoui Version /Funtouch OS Version) to upgrade your phone to the latest version.

12, reset the network settings.

Resetting network settings will delete the connection records of WLAN, mobile data network, Bluetooth and other networks. You can enter Settings-System Management-Backup and Reset-Reset Network Settings-Reset Settings-Follow the prompts (you need to select the corresponding SIM card for dual cards).

note:

1, enter the cloud service-data synchronization-turn on WLAN, Bluetooth, etc. Synchronize data to the cloud service.

2. Enter "Cloud Service"-Device Cloud Backup-Backup Data Type-Open "System Data"-Return to the previous page-Back up immediately and back up some system setting data.

13, service center inspection

If the above methods fail to solve the problem, please back up the mobile phone data in advance and take the mobile phone and purchase certificate to vivo customer service center for testing. Go to official website /vivo Mall APP-My-outlet to inquire or click the webpage link, and select the current city to get the address and contact information of the service center.

Tips: In order to save time, it is recommended to contact the customer service center staff by phone before going to avoid running empty, plan the trip reasonably and travel safely.

If you still have more doubts, you can also enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.