Mine done the same thing also. Try this it fixed mine, it appeared to be corrupt files. http://avic411.com/index.php?/topic/22844-complete-30-install-guide/
My install stops at step 4.4. Cannot get it to do anything after that, when I insert the sd card it doesn't do anything. Anyone have any idea's what the problem may be?
Has anyone had a problem with the wince upgrade screen. My F90bt goes to this screen and that's as far as it will go. Cannot get it to respond or recognize the sd card with the two wince img files on it.
Maybe we should wait until the Kenwood comes out and see what flaws it may or may not have before we compare the two head units. Hard to compare a flawed HU to one that's not out yet.