Just tried to upgrade my 770 with the official tool. No way to establish a connection and leave the tool upgrade the brick (with or without proxy config or direct connection). Following the Nokia instruction I've downloaded the 2006 image at Maemo and flashed it.

A question: is the image available on Maemo repository the last one as claimed on the Nokia site?
The Maemo image is reported as a 2.0 "beta" release!

What is wrong? I just filled my 770 brick with a unofficial/beta test release?

Thank you