Thanks for your support. I did all again from scratch including post-boot sleep etc. I also flashed the E220 to the newest Vodafone SW.

I still have the same notice in the system log like xipbox, but the difference is that I cannot connect in any combination of reboot, POR etc. I even tried a powered USB hub in between thinking of power problems that E220 is often having.

The Oleg's version is now 168a, should this work as well?

Could some firmware other than Vodafone version work better?

And what is this stuff about "USB device not accepting new address"? Can anybody tell?