I found the way to fix that problem. After plug the modem in, run this command sudo modprobe usbserial vendor=0x12d1 product=0x14a8
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/935230 Title: usb_modeswitch fails with "Essential attributes are missing" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-modeswitch/+bug/935230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
