• Download and Install DC unlocker.Click • Open DC unlocker and connect your 3g dongle.Select Modem manufacturer and model of Dongle( Auto detection Recommended) • Now scan your device and wait for it to finish. • Click on Server and enter your username and password(the one which you got after purchasing credits from ) • Now click on unblocking and then on unblock. Wait for the process to end and within seconds you will Unlock 3G Dongle for all Sim Networks. Method 2: Unlock 3G Dongle for all Sim Networks (Free) • Download and install Universal Master Code. Belajar Sambil Bermain Pdf. Click • Connect your USB 3g dongle. Do not use the default sim,use a new sim instead • Now enter the IMEI of the Dongle.Look behind the dongle for it.