Take oppo r 15 mobile phone as an example, and the operation steps are as follows:

1, open the mobile phone file management, find the safe, and click Enter, as shown below.

2. Then enter the password in the password interface and click Open, as shown below.

3. Enter the closet, find the picture, and click Enter, as shown below.

You can find the photo you are looking for in the picture, as shown below.