Connect your phone or SD card to a computer and look for the folder called “.Vaulty” where Vaulty stores hidden files. You should be able to find this folder in the DCIM folder on your phone. In this folder, you will see files with names that look to be a jumble of numbers.
You will need to download a hex editor onto your computer, such as the HxD Hex Editor.
Open the HxD Hex Editor and drag one of your files into the program. You should see three separated sections of columns. Look for the word “obscured” at the beginning of the section on the right. If you open a file and do not see “obscured” in the right column then it is a video file. To recover video files, all you simply need to do is change the file extension.
Delete “obscured.” A window will appear warning you of the change you just made; click OK. Make sure to save the changes you made to the file. Go back to your picture folder and now you will need to make your file extensions appear.
If you have Windows XP, you can follow the tutorial here.
If you have Windows Vista or 7, you can follow the tutorial here.
Now that you can view your file extensions, find the file you have already edited in HxD. To find a file that you just edited, you can sort your folder by “Date modified” and find the most recent date.
You will need to rename the file to remove the “.vdata” extension.
Change the file extension to “.jpg” or to “.png” if it’s an image. If it’s a video file and you don’t remember what its original file format was, change it to whichever type of file your phone records videos in. Typically it will be either “.mp4″ or “.3gp”. A window will warn you again; click Yes.
Your file should now be reverted back to normal.