Download DC-Unlocker ZTE Routers unlocker client

Launch DC-Unlocker ZTE Routers unlocker sofware

Open User Account data tab, enter your username and password that you received after credits purchase. Click "Check account status". (you can buy credits here www.dc-unlocker.com/buy)

If DC-Unlocker/Vygis/Rocker/Infinity dongle is connected, do not enter username and password, only click "Check login". Note: without loging into the server some files won't be accessible

After login, navigate to "Help" tab and click "Access support area" button

Wait untill Support area website opens in the browser