Why does vivo mobile phone illegally access mobile internet phone when making a phone call?

You can try changing a SIM card. If it still doesn't work, I suggest you try the following methods. 1. Try using "Settings->; More settings-> Restore factory settings-> Restore all settings "2. Click "Settings->; -& gt； System upgrade-> Check for updates now upgrade to update your system. 3. Try "Settings->; More settings-> Restore factory settings-> Clear all data "Clear abnormal data. Note: This item will lose all the data saved by the user on the mobile phone, including phone book, short message, third-party application software and related account information. Please use it with caution. You can check the address of the after-sales service center in the settings-more settings-after-sales service menu of your mobile phone. 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!