How to open the hidden application of the true self q3?

1. First, click "Settings" on the mobile phone desktop to enter the setting interface and find the security options.

2. Enter the security interface and find the application encryption option.

3. Click the Apply Encryption option and select the application to encrypt.

4. Carry out encryption processing, set encryption verification and set security questions. After setting it up, you can start setting up application encryption.

5. Take SMS as an example to turn on startup password verification.