Hi Friends,

I have a video tutorial for flashing the Nokia N900, hope these will help you:

http://www.youtube.com/watch?v=E1zvRjL-2cM
http://www.youtube.com/watch?v=O54KdLvTA2U

Also, I have just finished recording another video tutorial for flashing but this time it has voice narration to help even better. The video is still being encoded at the moment; once done I will upload as well. I'll also edit some of the wiki pages to include these video links.

Tips:

1. If you're flashing in a Microsoft-based Operating System, make sure that the user account that you used to log in is an Admin User Account (or enable the "Administrator" account). I tried flashing in Windows XP SP3, Windows Ultimate, and Ubuntu 10.04 and 10.10...all of them worked.

2. Make sure that you have downloaded the latest image files.

3. As already mentioned by the others, back up your files before flashing because flashing is, in analogy, like re-formatting a hard drive.

Hope this helps.

EDIT: updated the wiki page to include the video tutorials - http://wiki.maemo.org/Updating_the_firmware