Ti agevolo la vita ... verifica dopo aver impartito il comando lsusb se quello che ti ho evidenziato in neretto cambia.

Un consiglio appena apri la shell digita sudo su così non devi anteporre ogni volta il comando sudo a quelli che richiedono privilegi amministrativi.


Here are the instructions for making it work under linux (ubuntu 8.04 server):

$lsusb
Bus 002 Device 006: ID 12d1:1521 Huawei Technologies Co., Ltd.

$usb_modeswitch -v 0x12d1 -p 0x1521 -M 55534243123456780000000000000011060000000000000000000000000000

Looking for default devices ...
Found default devices (1)
Accessing device 006 on bus 002 ...
Using endpoints 0x01 (out) and 0x81 (in)
Inquiring device details; driver will be detached ...
Looking for active driver ...
OK, driver found ("usb-storage")
OK, driver "usb-storage" detached

Received inquiry data (detailed identification)
-------------------------
Vendor String: Vodafone
Model String: CD ROM (Huawei)
Revision String: 2.31
-------------------------

Device description data (identification)
-------------------------
Manufacturer: Vodafone Group (Huawei)
Product: Vodafone Mobile Broadband (Huawei)
Serial No.: not provided
-------------------------
Setting up communication with interface 0 ...
Trying to send the message to endpoint 0x01 ...
OK, message successfully sent
-> Run lsusb to note any changes. Bye.

$lsusb
Bus 002 Device 009: ID 12d1:1464 Huawei Technologies Co., Ltd

$modprobe usbserial vendor=0x12d1 product=0x1464

$ls /dev/ttyUSB*
/dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyUSB3

ttyUSB0 is the modem interface!