1. Check whether the mobile phone is equipped with an indicator in Settings-More Settings-Indicator;
2. Restart the phone;
Restart the phone:
1, press and hold the phone power button to pop up the "restart" option to turn it off;
2. Slide down the top of the mobile phone screen twice to bring up the shortcut bar details page/slide up the bottom of the screen to enter the control center, and click the "shutdown/restart" switch;
3, forced to restart the phone:
① ① models of funtouch OS 3.2 and subsequent systems: press and hold the "power button" and "volume down button" at the same time 10 second or more;
② Press and hold the top round key 10 second or more to forcibly restart the mobile phone (NEX 3/NEX 3S is applicable);
③ System model before ③Funtouch OS 3.2: Press and hold the "power button" for more than 12 seconds.
3. Check whether it is the latest system, not the latest attempt to upgrade the system;
4. Restore the settings. You can go to Settings-System Management/More Settings-Backup and Reset/Restore Factory Settings-Restore All Settings-Restore and Restore Settings.
This operation will not delete files or software, but will cancel the password and restore all settings, including the set wallpaper, unlocking method, 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.
5. If the above methods fail to help the recovery, it needs to be detected and handled by the customer service center (customer service center address: enter vivo official website /vivo Mall APP-My service outlets/after-sales outlets-select provinces and cities to inquire about the customer service center address).
Graphical links: Web links
If you have more questions, you can also go to vivo official website /vivo Mall APP-My-Online Customer Service or vivo official website Web Edition-Slide to the bottom-Online Customer Service-Enter the manual customer service for consultation and understanding.