Write your unlock code on the back of the dongle with a permanent marker. If you ever factory reset the firmware, you will need to re-enter the code.
There are two primary methods to unlock your K3772 Vodafone USB modem: UNLOCK K3772 z VODAFONE USB MODEM
Best for: Tech-savvy users, Windows users. Uses the device’s IMEI number to calculate the unlock code via DC-Unlocker or similar software. Write your unlock code on the back of