To open the Gallery Lock in Stealth Mode, you need to enter the correct code. This is : * + 7777 + the Call button (*7777 and press Call). This is the correct code that needs to be used in order to access your application. There is no other way to open it. To be noticed, that if you try to uninstall the application while you still have pictures hide in it, you will lose them. Also, it's advised by the developer, to never Clear Cache or Clear Data for this application because this might lead to errors. If you did this, try contacting the developer on the following mail address : firstname.lastname@example.org for further support.