@andreas_garvik, Did you managed to do something? I'm in the exact same situation, i have had Windows 7 64-bit, installed extra RAM (from 2GB to 8GB), than i noticed that only 3.06GB is available, reflashed bios (exept for that i flashed v1.19), and the end was the same - after restart initial screen came up, and stayed there, i decided to manually power off, and after that only black screen cames up. :/
So how does your story end, did they repaired your laptop in terms of warranty, or did you have to pay for reparation?
Is there any way to reflash bios without need to send laptop to the service center?