Why can't WeChat make voice calls and videos?

If you use a vivo phone, you can check it as follows:

1, please keep the network unblocked and try to change the network;

2. Enter I Manager-Application Management-Permission Management-Permission-Use Camera-WeChat-Allow Permission;

3. Try to uninstall and reinstall WeChat. Please back up the WeChat data before operation.

Backup to computer: open the computer version of mutual transmission, turn on the USB debugging of the mobile phone, connect the computer and the mobile phone with the original data cable, enter the computer mutual transmission-data backup-new backup-view the WeChat data-and start the backup. Click Restore Data to restore the previous backup.

4. Restart the device after uninstalling the third-party housekeeper software.

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