This is only for those users which have memory card in their PHONES
first of all you will need
-computer
-usb connectivity of MEMORY CARD TO PC(CARD READER) NOT BLUETOOTH
-little brain
follow these steps:-
1.remove memory card from mobile.
2.insert it in CARD READER.
3.OPEN start menu>All program>acceSSories>system tools>DISK DEFRAGMENTER
4.Just run defragmenter at your memory card.
5.FRAGMENT IT 2 OR 3 TIMES.
6.PUT back memory card to phone.
7ENJOY THE "SPEED."
Enjoy...