HEY GUYS THANKS NOW I KNOW WHAT ARE 7Z FILES...
BUT I HAVE A ANOTHER PROBLEM: I START TO UPDATE MY MP4 WITHOUT MAKE A BACK UP OF THE ORIGINAL FIRMWARE (NOW THE SCREEN IS DARK BLUE). MY TROUBLE IS KNOW THE RIGHT FIRMWARE FOR MY MP4.
THE SPECIFICATIONS OF THE MP4 ARE THESE:
MEMORY: samsung 637 K9F4G08U0A PCB0
BOARD: MP-693C-SL KEY V1.2 KNIFE 051111
4 GB
COLOR:BLACK LIKE IPOD NANO
PLEASE AGAIN!!! GIVE MY THE RIGHT FIRMWARE FOR MY MP4!!!
http://img01.picoodle.com/img/img01/...m_4a70658e.jpg