Hi Terence, I am trying to use E173 Huawei on my raspberry but its just ont creating the ttyUSB1 and ttyUSB2 I spent few days surfing internet for similar problem, and I ended up doing everything without result I belive my dongle is detected as a mass storage, and I tried commneds swtiching failed, please let me know if if there is straight forward stetp to : change the dongle from Cd rom to modem. thanks sufi