I can't seem to update after debranding

[chingaling]

I currently own a Nokia 5800 from Rogers. And recently I wanted to debrand my phone and upgrade from v31 to v50. The reason why I want an upgrade is because the current firmware is frustrating and freezes a lot.

So I followed the two debranding instructions from:
http://nokia.nigelcoldwell.co.uk/firmware.htm
and
http://sjc-nokia5800.blogspot.com/

I have successfully changed the product code to EURO 1 BLUE, when I try to update it through NSU or on my device updates, it says no new updates are found.

Anyone have an idea why I am running into this problem?

[chingaling]

bump! bump! bump! bump! bump! bump!