Ive been trying to get the new update 51-1 installed onto my uk n900 but it keeps asking me to do it over the nokia update manager on the pc. i already have the 44-1 which i believed let me do this update over the wifi, for me it doesn't. The very annoying thing is when i try to update with the nokia updater it says i have to up to date firmware on it. I would try to reflash myself but the backup doesnt work on the pc suite. Is there any other way to to both the backup and the update? plus with the glitches/bricking being touted in the forum is it worth it?

i had the same problem. i made a backup on my N900 from backup application in the more menu. after updating through NSU i restore my backup file it did install all the apps and working perfectly fine.

Thanks for the tip on the backup, had forgotten about that. The main problem i have is that the NSU only lets me update to the 44-1 and not the 51-1 update

NSU IS GAY. So just use the flasher for now until they fix their NSU. or just use OTA uf you can

http://wiki.maemo.org/OTA_to_PR1.1_troubleshooting