Hello!
I have this error when i try to backup my firmware
s1fwx v3.3 - copyright (c)2005-2008 wiRe (
http://www.s1mp3.de/)
dump firmware from device...
scan for devices...
detected drives: <h> [i]
<a>..<z> select device
<.> scan for devices
<?> display help
<~> exit program
$h
connect to device 'H:\'...
init device...
set device to f-mode...
get info from device...
ic version = 0x7676
storage info = 0x0602, 0x0000, 0x0000, 0x0000
device = 'LISONG MP3 Player'
manufacturer = 'Wilson Co. Ltd.'
bootflash type = 'F285'
brom version = 3.0.80
firmware version = 9.0.50
read boot record...
detect firmware size...
error: El sistema no puede leer desde el dispositivo especificado.
disconnect from device...
Presione una tecla para continuar . . .
My MP4 is :

MP4 / MP3 player, 2GB internal capacity
Support up to 4G expansion capabilites via the built-in SD Slot
1.8 inch screen, 262K colors TFT LCD display
Multifunction: Video / audio playback, voice recording, Ebook, games, photo album
Support format: MP1-MP2-MP3-MTV-WMA-WMV-AMV-WAV
Support ID3 lyrics display with song title
Built-in double loudspeaker
Any idea?? or a link to download this firmware?
Thanks and good luck