Comment 1 for bug 556197

I managed to get it working by following the instructions on http://www.madox.net/blog/2010/01/06/hp5310m-un2420-wireless-gobi2000-module-in-ubuntu/

I've also noticed that it doesn't reload after you resume from suspend or hibernate so I had to write a little reload script which I run manually after a resume:

#!/bin/sh
gksudo gobi_loader /dev/ttyUSB0 /lib/firmware/gobi/
gksudo pkill modem-manager

(I copied my compiled gobi_loader into /usr/local/bin)