I also upgraded the firmware (using WinXP in VirtualBox) and it seems to have solved the problem (Huawei E220). Now both mass storage and modem seems to work.
I think it was clear that all those issues with Huawei modems were caused by buggy firmwares. But a workaround in the kernel is probably not a bad idea because most users will not see this bug report or will not be able to upgrade the firmware. -- Huawei E220 modem unable to connect under Karmic https://bugs.launchpad.net/bugs/449394 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs