The point here is that I hereby admit that actually I really do not know much. I can speculate and guess, but to say something as fact here I would need some links/sources/documentation to back my facts. And still I do not care that you have seen schematics. Probably nokian's have testbed where they can do whatever they want to this device. So what? Right now it seems that modem fw is not reversible with given tools. You can always of course argue that any encryption is breakable with right tools and enough resources but thatīs just academic jerk offing.Saying that itīs a fact that you canīt brick your N900 sounds just bit off. For example I have been on forums where people have bricked their cd-rom drives, GPU's, motherboards just by applying wrong FW. YES itīs possible to reverse it but not by themselves so basically they have killed their device and only way to resurrect it is to send back to vendor. And btw. as you know this is my second language and at least I know how to put paragraphs. And please try to think even then when you thought that you do not have to think.