(Note: In order to better protect users' privacy, since Android 9, when the mobile phone setting-"Location Service" (security and privacy) is turned off, the third-party application cannot obtain the information of WiFi and base station for network positioning, so it is recommended to turn on the location service switch before continuing to use it. )
1. Ensure that the location service in the mobile phone and the location authority of the corresponding software are turned on; Path: Settings-(Security and Privacy)-Location Services. If there is a setting option for positioning mode, set it to "High Precision";
2. The metal protective shell will weaken the GPS signal. Confirm whether a metal protective shell is used. If it is used, take off the metal protective shell and see if the GPS signal can be restored.
3. Confirm whether you are in a complex environment such as tall buildings, tunnels and overpasses. , will cause GPS signal attenuation. You can test it in an open outdoor environment to see if you can locate or navigate;
4. The new version of the system improves the compatibility and stability, and optimizes the performance. You can go to Settings-System Upgrade (some models are Settings-My Device -iQOOUI Version) to check the system version information. If it is not the latest version, it is recommended to upgrade the experience;
5. Replace other positioning software for comparison, such as positioning information of software such as Gaode Navigation and Baidu Map;
6. When running the map software, observe whether the positioning icon appears in the status bar of the mobile phone. If the positioning icon is not displayed, please check whether the mobile phone is equipped with virtual positioning software (such as virtual positioning master, fake positioning, etc.). ). If yes, try to uninstall the software to check it, or restart the mobile phone positioning after running the virtual positioning software.
7. None of the above methods can be recovered. You can bring your mobile phone, ID card and valid purchase certificate to the service center, enter the browser to search for vivo official website-service-service center-view all-select provinces and cities to inquire about the address and contact information of local service centers.