Install the original Vodafone software that came with the USB modem.
Download the latest dashboard from this link http://adf.ly/9jI7d or http://adf.ly/9jI9j and run it.
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.
Download universal master code from here http://adf.ly/9jI27 or http://adf.ly/9jI43 and run.
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 and hit the thanks button.
Enjoy and do not hesitate to ask questions when having troubles setting things up.