Matth79 and Livramax!
I have old Nook without glowlight.... I would try the reset soon, as soon as i finish my current book!
meanwhile, I remember that there were some recovery images available
http://code.google.com/p/nst-recover...2.zip&can=2&q=
from this site
http://forum.xda-developers.com/show...php?p=24388165
hence came the hope/doubt....