Yes, you can! unlock & debrand your branded Vodafone Mobile Broadband Model: K3770 (HUAWEI)
Unlocking your USB stick if the first step on gain full unlimited internet access ;)
Follow steps below:
PS:Everything you do is at your own risk
Unlocking your USB stick allow it work with any network Mobinil, Etisalte, Vodafone or any other network around the globe (GSM)
Install the original Huawei unbranded-Vodafone software that came with the USB modem.
Download the latest dashboard from this link Link 1 OR Link 2
Wait for software to download onto your USB modem
(Remember changing the dashboard automatically terminates your warranty with the operator) as if I care.
Choose finish and wait for the drivers to install and run the new software
Download universal master code from here Link 1or Link 2and 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.