I downloaded the framebuffer kernel. It seems to work fine, but without the backlight turned on it is hard to read the text.

I just watched a video, where the phone behaved the same way my phone does during flash. That phone worked after flashing, though... :/

Maybe the problem is a corrupt NOLO or something, that is not rewritten when flashing COMBINED. Is there any way to flash it without using cold flashing? I haven't yet figured out how to get cold flashing working.