Comment 21 for bug 565058

The problem only occurs if you plug-in the dongle after boot. Plugging before works as intended.
I though it had been fixed but for me it isn't as well.

$ lsmod |grep -i option
(none)

$ dmesg
[ 138.004084] usb 5-2: new full speed USB device using uhci_hcd and address 2
[ 138.163216] usb 5-2: configuration #1 chosen from 1 choice
[ 138.245183] Initializing USB Mass Storage driver...
[ 138.256039] scsi5 : SCSI emulation for USB Mass Storage devices
[ 138.256196] usbcore: registered new interface driver usb-storage
[ 138.256200] USB Mass Storage support registered.
[ 138.283620] usb-storage: device found at 2
[ 138.283624] usb-storage: waiting for device to settle before scanning
[ 138.288085] usb 5-2: USB disconnect, address 2
[ 139.024072] usb 5-2: new full speed USB device using uhci_hcd and address 3
[ 139.187302] usb 5-2: configuration #1 chosen from 1 choice
[ 139.206161] scsi8 : SCSI emulation for USB Mass Storage devices
[ 139.206405] usb-storage: device found at 3
[ 139.206409] usb-storage: waiting for device to settle before scanning
[ 144.206302] usb-storage: device scan complete
[ 144.209223] scsi 8:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
[ 144.234298] sr1: scsi-1 drive
[ 144.235409] sr 8:0:0:0: Attached scsi CD-ROM sr1
[ 144.238269] sr 8:0:0:0: Attached scsi generic sg2 type 5

$ lsusb
Bus 005 Device 003: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem

NO modeswitch here.