i have got the same problem with my nokia n900 and the sim card. after the update-which went horribly wrong- i cant do anything. only the wifi works. i downloaded the flasher thingy but i dont know how to use it. please please if somebody who knows how to use it, please make a video and post it on youtube. please. i really love this phone and i dont want to see it go to waste. i am pretty sure a lot of other people have the same problem as me and vvvrussianvvv but dont know how to fix their n900. please make a video. Also i am using win7 64 bit but i tried doing it on a XP. the problem was i dont know how to use the flasher.