my N900 got blank screen during installation of easy debian img package.

I followed the http://wiki.maemo.org/Easy_Debian for installation.

I used the Application Manager and installed Easy Debian. It worked fine. (I guess)

Then I clicked on the Debian Image In icon, one of those made by Easy Debian, and proceed to install
the image with Libreoffice in internal memory, so when the installation was at 96% was the last photo I took.
While, I went to do another stuffs and when I came, i saw on screen something like I should to choose Ok, or another option, but I couldnt select anything, because when I tried to take a photo of this message, the screen go blank. Blank but ON.
It doesn't seem to be a battery problem because it was connected to the charger.

So, what could be the problem?
I did not turned off or take out battery yet. Should I? or it is better to wait? (I have waited nearly 4 hs since then).
It has happened this to anyone?






By the way, one piece is missing so I can't use microSD memory.


Any help would be very appreciated.