If you are still using locked Huawei 3G USB E170 modem and you want to unlock it for free, then this is the best place. Yes it can be unlocked for free. It is too easy to unlock. You just need to download one software which link is provided at the end of the article. Just download the said software from the link which is provided at the end of the article and follow the guidelines as provided by me.
How to unlock Huawei 3G USB E170 Modem totally Free?
1. Eject the modem from your computer/laptop (if already connected).
2. Note down the IMEI which is written on the reverse side of the Huawei modem.
3. Run the downloaded software and go to Huawei tab.
4. Put the IMEI number in IMEI box which is highlighted in above screenshot.
5. Click on Calculate button.
6. Now the software will calculate the Unlock code and Flash code for your modem.
7. Note down the Unlock Code only.
8. Now change the default sim card with other than default carrier.
9. Plug the modem to computer/laptop.
10. Let it run the default dashboard.
11. Now the modem will prompt for 8-digit unlock code.
12. Enter the unlock code which you have generated before.
13. Click OK.
Now you can enjoy your unlocked Huawei E170 3G USB modem!!!