After installing drivers, restart computer
Launch DC-Unlocker client
Detect device by selecting Huawei modems from manufacturers drop down menu list, select model leave on Auto detect (recommended), then click magnifying glass button
Wait till program detects it
Open Server tab, enter your username and password that you received after credits purchase. Click "Check login". (you can buy credits here www.dc-unlocker.com/buy). If DC-Unlocker/Vygis/Rocker/Infinity dongle is connected, only click " Check login "
Open Unlocking tab, click “Unlock” button
Wait for device to be unlocked
After you see that module was successfully unlocked, restart computer. Now you can use it with any SIM card