upgrade memory

Hi all,
please send me (to my email) firmware for
S1 mp3 player
Wilson Co.Ltd
v 9.0.49

hello!
i have sony mpe4 player ,i cant record and i cant upgrade.
i need your help.
plz plz plz help me at this id !
pink_n_2008@yahoo.com

I have the same problem i cannot upgrade ma mp4 no matter how hard i search

my mp4 didn’t open, even computer can’t open nor read my mp4, what should i do? what software should i use to solve my problem? please help!!!