This is fixed in the current Quantal version. See bug #1043486 ("36ef5fa mbm: use +CFUN=4 for powering down"). Would be nice if it was backported to the LTSes.
** Changed in: modemmanager (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/816400 Title: NM can't power off Ericsson F3507g WWAN (but can power it on) To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/816400/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs