How does vivo mobile phone send text messages to numbers that are not contacts?

Hello: You can enter the information interface, click Add Information in the upper right corner, enter the sending number in the upper input box, enter the SMS content in the lower input box, and click Send.

If you want to back up the information of your mobile phone contacts, please follow these steps:

Click on the contact of the mobile phone to see the number of the contact;

Click the option key on the mobile phone, which is the key next to the home page of the mobile phone, which is the left key. The following display items will appear. Click [Copy Contact];

Select the location to copy, that is, the location where the phone number on your mobile phone was previously stored.

Select the contact you are responsible for. We can also choose all of them. Then click [Copy]

Select copy to SIM card. This way, even if you change your mobile phone in the future, you don't have to worry about losing your contact.