Why can't vivoiqoo7 make a phone call?

You can check the following troubleshooting methods:

1. Go to I Housekeeper-Utilities-Harassment Interception-Telephone Interception to see if the relevant interception options are turned on;

2. Turn on the flight mode and then turn it off or restart, so that the equipment can re-register with the network;

3. If it is in a closed environment, such as basement, elevator, etc. , poor signal may make it impossible to make a call;

4. Take out the SIM card and insert it again, or replace it with another SIM card;

5. If the don't disturb mode is turned on, please enter the setting-sound and vibration-don't disturb mode-turn off function;

6. Check whether the third-party mobile phone housekeeper software is installed and the call interception function is set. It is recommended to uninstall such applications for viewing.

7. If the mobile phone card is opened, some or all incoming calls will be restricted. Please consult the operator's customer service for details.

8. Confirm whether the calling card turns on the call forwarding function. After turning on the function, incoming calls will be transferred to other numbers;

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

10. At present, operators have cancelled the 2G/3G network in some areas. It is recommended to open the VoLTE HD calling service and try again (contact the operator to open it);

1 1. After upgrading the system or recording the password of the WiFi account, go to Settings-System Management-Backup and Reset-Reset the network settings. This operation will not delete any data or media files, but only restore the settings of WiFi, mobile data network and Bluetooth (such as Bluetooth pairing information), and other mobile phone settings will not be restored;

12. If the above methods are ineffective after operation, you can take the mobile phone and purchase certificate to the customer service center for testing and processing in time. Address of customer service center: Go to the service outlets of vivo official website /vivo Mall APP-My-or the webpage version of vivo official website-slide the bottom-service support-service outlets query-select provinces and cities to query the address of customer service center. It is recommended to call in advance before going to avoid empty running, plan your trip reasonably and travel safely.