OK, i just tried to reflash it again, sadly with no luck. i tried some different options in maemo flasher-3.5 but tbh i didn't know how to use them properly...

i tried to flash my n900 with combined image 1.11, 1.2 and 1.3 and first and the latest vanilla image, tried combinations and stuff. nothing worked. I'm starting to get sick of it right now. I never had a phone wich made me to work on it for so long, and i used to work in a phone repair centre... this is getting really annoying..