Install the original Vodafone software that came with the USB modem
Wait for software to download onto your USB modem
(Remember changing the dashboard automatically terminates your warranty with the operator)
Choose finish and wait for the drivers to install and run the new software
Choose Huawei tab and insert IMEI and press calculate (copy unlock code)
Insert different sim into modem and run mobile broadband and insert the unlock code.
Remember to say thanks