Note: before proceeding with steps below, set adapter bindings by following instructions here. Also insert operators sim card that does not work with device. For example if it's locked to operator "A" insert operator's "B" sim. Connect device to PC using USB cable

Device must be visible under "Network adapters" in device manager window. If it doesn't then check computer area for device's drive/cdrom. If it's there, make sure everything from it was installed, then right click on drive and select "eject"

Unlock tested with Windows 7, may not work on other.

Huawei 303HW Drivers Download (Drivers are remade from ZTE, but works with this device)

Launch DC-Unlocker client

Detect device by selecting Huawei modems from manufacturers drop down menu list, leave Select model as auto detect (recommended) then click magnifying glass button

Wait till program detects device

NOTE: if device not detected read further for solution

IMPORTANT: It might be so that you get an error during detect or unlock, in this case open Device Manager and locate your modem under "Other devices" line. Right click on one of the lines and select "Update Driver", apply drivers. Do this for other line as well, then repeat detect and unlock procedure. Drivers here

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” / "Do job"button

Wait for device to be unlocked

It might be so that you get an error during unlock, in this case open Device Manager and locate your modem under "Other devices" line. Right click on one of the lines and select "Update Driver", apply drivers. Do this for other line as well, then repeat detect and unlock procedure. Drivers here

After you see that modem was successfully unlocked, restart it by disconnecting and connecting back. Now you can use it with any SIM card.