To do this you just need a memory card reader and a pc. Right put your memory card in your memory card reader and use windows defrag to defragment all the files on your memory card.Then after the defragment is complete put the mmc back in your phone and it works 100% and with better speed than previous.Because I have tested it myself and i know it works u will notice your apps open quicker. Enjoy with your fast access mobile phone.