Open the Phone/Dialer app
Enter the vault access code set in the Gallery Vault app
Tap the call button or press the dial key if required
Wait for the hidden vault screen to open
Enter your PIN, pattern, or password if prompted
Access your hidden photos and videos
If the code does not work, open the Gallery Vault app directly and check the correct dialer shortcut code in its settings
If you forgot the code, use the app’s recovery option or reset method