Optus Australia has recently launched launched a new 4G LTE modem, the Huawei E3372h-607. This sub-model of Huawei E3372h, comes with firmware version 22.329.63.00.74. It is highly secured firmware and there is no direct procedure to change the firmware to universal one for unlocking.

Our team has modified this firmware of Optus Australia Huawei E3372h-607 (Firmware 22.329.63.00.74) and now it can flash the firmware to universal one. Means, unlocking of Optus Australia Huawei E3372h-607 is now possible without opening the screws of the device.


To unlock the Optus Australia E3372h modem, you need to pay 6USD. While paying mention model, network, and IMEI in the transaction.

This modified file will work up to the firmware version 22.329.63.00.74, which comes in Optus Australia E3372 modem.

How to Unlock Optus Australia Huawei E3372h-607 (Firmware 22.329.63.00.74)?

1. Download the unlocking file of Optus Australia Huawei E3372h-607 from the link which is provided at the end of this post.

2. Run on any Windows PC (32-bit or 64-bit / Win XP, Win 7 or Win 10).

3. Unlocking app of Optus Australia Huawei E3372h will generate the hardware ID, copy and email which it will be asked by our team (Charge is 6USD).

4. Our team will provide the key according to the hardware ID.

5. Once you are ready with key, download Huawei latest drivers.

6. Unzip using WinRAR software and run the setup file.

7. It will install the correct drivers in background.

8. Now download and run DC unlocker software.

9. Click on Search Magnifying Glass.

10. It will detect your device and show complete details.

11. At the end of the result, in a new line, paste AT^GODLOAD.

12. Press Enter from the keyboard.

13. Wait for 10-second to load the drivers.

14. Now run the Optus Australia Huawei E3372h-607 unlocking file, which you have already downloaded.

15. Fill the registration name and key which you have got by our team.

16. Click Register to start flashing the firmware of your Optus Australia E3372h dongle.

17. Once flashing completed, again detect the device in DC unlocker software.

18. At the end of the result, paste the following:


19. Press Enter from the keyboard.

A response will come as OK.

Now your Optus Australia locked Huawei E3372h-607 (Firmware 22.329.63.00.74) is unlocked permanently to use with all sim cards.

Update : Those who don’t want to change the firmware of the device, can place the order for an unlock code by IMEI at here.

Share your thoughts here!