There is more than one type of hardware being used here, so there is probably more than one kind of bug.
The Huawei e220 problem is launchpad bug #449394. It contains a link to an E220 firmware in comment 10. After upgrading their modem's firmware to the version available at this link, many people reported their E220s were now working. If you have a Vodafone branded modem you may want to use the firmware linked to in comment 24 of that bug instead. You may also need a 2.6.31-15 or later kernel, but everyone is this bug is using lucid/maverick/natty so there should be no problem in that regard. There a few other workarounds/tricks among the various comments too. Also see comment 31 in that bug. Unfortunately the upstream bug at http://bugzilla.kernel.org/show_bug.cgi?id=14499 seems to have stalled, although perhaps that is due to the success of the firmware updates. It seems that Huawei's original firmware was not fully compliant with the USB specification set by the USB Implementers Forum (USB-IF). There is short page on the USB-IF at http://en.wikipedia.org/wiki/USB_Implementers_Forum if you are interested. If it doesn't work instantly after upgrading, then follow the following instructions provided by launchpad user SP: Updated my Huawei E220 FW to 11.117.10.02.00, now my 9.10 with kernel 2.6.31-17 shows modem first as a USB-drive. Ejected drive (not unmount) and it started to show as a modem like it should. Then just chose from NetworkManager Enable Mobile Network and opened my connection. "Zadamn" I am on internet with my Karmic. Just took me three months to get correct info to get on line. Thanks for everybody for their input. I highly recommend to upgrade FW to latest one you can find. Works the same way with 2.6.31-18 Startup-> Eject Vodafone USB-drive NetworkManager->Choose Network provider Connection made! The Huawei K3765 problem might be fixed upstream in the upcoming kernel 3.1. From the 3.1-rc4 changelog: commit 6118514e8749105334f46ccec6faf9a439be6cf9 Author: Andrew Bird Date: Wed Aug 17 00:20:03 2011 +0100 USB option driver K3765/K4505 avoid CDC_DATA interface Currently the Option driver avoids binding interface 1 on Huawei K3765 and K4505 broadband modems as it should be handled by the cdc_ether driver instead. This patch ensures we don't bind the interface 2 on those devices as that is CDC_DATA. Signed-off-by: Andrew Bird Cc: stable Signed-off-by: Greg Kroah-Hartman A PPA of kernel 3.1-rc4 is available at http://kernel.ubuntu.com/~kernel-ppa/mainline/ A PPA of 3.1 final will be available at the same location shortly after it's release. @ Lars Petersen - which modem are you using? ** Bug watch added: Linux Kernel Bug Tracker #14499 http://bugzilla.kernel.org/show_bug.cgi?id=14499 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/689894 Title: Huawei modem disappears / reappears when trying to connect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/689894/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
