commands block with no error

[devilcrazy]

hi,

i've follow your tutorial : http://www.idroidproject.org/wiki/ADB

all steps was OK but when i've tried to do "Switching from USB to WiFi " the step is blocked in my terminal and no error appear!

my device state is : device.

so i've try commands :
adb tcpip 5555 = block in terminal
adb shell   = block in terminal
adb shell mount -o remount,rw -t yaffs2 /dev/mtdblock3 /system = block in terminal
iv'e try to kill my command and try another but it's the same ...   

i can't to have an access at my device why ?

thx for you're help.