Ok so this appears to be the same thing as a bug in Debian; could you please try the steps outlined there and see if that works?
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629950 Just omit the part about using a different kernel; adding the udev rule might be sufficient. ** Bug watch added: Debian Bug tracker #629950 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629950 ** Also affects: modemmanager (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629950 Importance: Unknown Status: Unknown ** Tags added: lucid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/838757 Title: HP hs2340 HSPA+ Mobile Broadband Modem does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/838757/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs