That was the problem I was facing. Its simple. Get the image from http://tablets-dev.nokia.com/nokia_N900.php Enter your IMEI. And it will direct you to a page from where you can download the latest image File P.R 1.1 Now rename it to anyname you want and paste this file in the flasher folder that should be present in the program files. Dnt make the mistake that I was doing. I right clicked the icon in start menu and selected "Open File Location" which was actually leading me to the Start menu shortcut folder. Dnt do like this. Copy and Paste it in the flasher folder present in Program Files. Hope u will get ur problem resolved
Vanilla version of the eMMC content for Nokia N900 NOTE: Always flash the FIASCO image first, then the eMMC image immediately after that. Never boot up the device between flashing the FIASCO image and the eMMC image!