No menu after some misstakes

I have inactivated TV and inactivated Simple client but I forgot to change the start menu in “System/setting/skin” check out post #64 in http://forum.kodi.tv/showthread.php?tid=…pid2476193

Now I can’t do anything when I start up. I can’t turn Kodi of and I can’t access the xbian by putting the card in my laptop and I cant change anything in GUI while Kodi is running.

Sad

Jörgen