I'm sorry for the inconvenience, so I suggest you try the following methods: ① Click one-click acceleration (one-click cleaning) in the status bar of the mobile phone, or close the background program, clear the cached files in the program management of the desktop, increase the available memory, and avoid the phone crashing due to insufficient memory. (2) click "Settings->; More settings-> System upgrade-> Check for updates now upgrade to update your system. ? (3) try to pass "Settings->; More settings-> Restore factory settings-> Clear all data "Clear abnormal data (that is, restore the factory status), which can solve the crash problem caused by the compatibility of viruses and third-party software. Note: Clearing the data will lose all the data stored by the user on the mobile phone, including phone book, SMS, third-party application software and related account information, and the data stored on the T card will not be lost. Use with caution If the above methods can't solve the problem, please contact the after-sales service center. The telephone address of the after-sales service center can be found in Settings-More Settings-After-sales Service. You can also check the address of the after-sales service center in vivo official website: /service/map.html?
If you have any questions, please feel free to consult us. Thank you very much for your support of our vivo. I wish you a happy life!