How to set the password lock for SMS?

The setting method of SMS password lock is as follows:

Tools: vivo iqoo 9, OriginOSv 1.0, software management.

1. Open the vivo mobile phone to enter the interface, select Software Management, and click Enter.

2. After entering the software management interface, select the software lock and click Enter.

3. After entering the password setting interface, click Use Digital Password to enter.

4. Then set the password and secret protection according to the mobile phone prompts.

5. After setting the password, enter the software lock application interface, find the information and click to complete the information encryption.