Ubuntu 12.10 is now end of life. If anyone are able to still see any of the problems described here in a newer Ubuntu version, please run "ubuntu-bug modemmanager" in a terminal. Feel free to link to these bug reports from here.
** Changed in: modemmanager (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1057186 Title: Modem functionality of the Huawei E173 and E3131 doesn't work Status in ModemManager (with NetworkManager support): Fix Released Status in modemmanager package in Ubuntu: Invalid Bug description: Modem functionality of Huawei E173 works in 12.04 but not in later releases, although it can be read as a drive. Otherwise, the modem itself is recognized by the modem-manager but fails to connect to Internet. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: modemmanager 0.6~git201206221719.8289a64-0ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3 Uname: Linux 3.5.0-13-generic x86_64 ApportVersion: 2.5.1-0ubuntu4 Architecture: amd64 Date: Wed Sep 26 23:37:21 2012 InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: modemmanager UpgradeStatus: No upgrade log present (probably fresh install) There is a potential fix in upstream branch "06-huawei". To manage notifications about this bug go to: https://bugs.launchpad.net/modemmanager/+bug/1057186/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp