this worked perfect for my UK model, i used this EU v3 as the backup to save my blank screen problem. so now its fixed and well up to date, a point to note if you are useing this to fix your f900, follow these instructions to the letter http://www.avic411.com/forum/viewtopic.php?f=33&t=27155 "BUT USE THE WINCEIMG.BIN AND WINCEIMG.CKS FILES IN THE FIRST STEPS FROM THIS V3 DOWNLOAD (not from a diferent version)"
had to mention that as this thread and the one mentioned above were my combined saviour!
cheers