Vivo mobile phone suddenly can't make calls, send text messages and surf the Internet.

I'm sorry for the inconvenience. I suggest you try the following:

1, try setting->; More settings-> Restore factory settings-> Restore all settings "

2. Click "Settings->; More settings-> System upgrade-> Check for updates now "to upgrade your mobile phone system. You can set-> More settings-> System upgrade-> Check the update immediately-download the upgrade package according to the prompt, click Check and Install, and the phone will restart, automatically entering the upgrade mode.

3. Try to use "Settings->; More settings-> Restore factory settings-> Clear all data "Clear abnormal data. Note: This item will lose all data stored by users on their mobile phones, including phone books, short messages, third-party applications and related account information.

4. You can try firmware upgrade and recovery. The way is to go to official website to download the firmware upgrade package to restore the system. Address of firmware upgrade for each model:/service.html. Enter this link, click "Service"-search for your mobile phone model in the search box, then select the model, click Resource Download-firmware upgrade, and download the rom package.

This is a tutorial, you can have a look. Firmware upgrade description:/thread-1024055-1-1.html (please remember to back up your important information before upgrading).

If you try the above methods and still can't help you solve the problem, I suggest you go to the after-sales service center to check your mobile phone. Please rest assured that the technicians in the after-sales service center will properly handle the problems encountered by your mobile phone. 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:

/Click on the website, then click on the service, and then click on the outlet to inquire. According to the prompt, you can inquire about the after-sales address of your province and city.