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How to retrieve the lost dialing key of vivo mobile phone?
1. Please confirm the third-party call management software (such as TouchPal and Hi Call). ) has been downloaded and installed. You can uninstall the third-party call management software before using it. Clearing the data of the software will cause the original data of the software to be cleared, and the data cannot be recovered after the operation. It is recommended to back up the data before operation.
2. Try to restart the phone to see if it can be used again;
3. Restore all settings: enter Settings-System Management/More Settings-Backup and Reset/Restore factory settings-Restore all settings-Restore, restore settings options. This operation will not delete files or software, but will cancel the password and restore all settings, including the set wallpaper, unlocking style, WiFi, default opening program, etc.
note:
Enter cloud service-device cloud backup-backup data type-system data-return-immediately back up some backup system settings and desktop layout;
Cloud service-data synchronization-turn on WLAN and Bluetooth to synchronize data to cloud service.
4. If there is no improvement, you can enter vivo official website-My-Online Customer Service-and enter the feedback of manual consultation online customer service.
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