It is annoying when people just pick your phone and start going through your stuff especially when we save all sort of naughty stuffs. Use this simple trick to hide your memory card.
Procedure
Go to your memory card.
1. Click memory card options.
2. Click rename memory card.
3. Rename to anything you want but add '.ota' to the end eg. 'memory.ota'.
4. Press ok, your memory card will now be hidden.
Note: When you want to rename or view your memory card again, just usefile explorerorBlueFtpto remove '.ota' from the memory card's name.