You Can Unlock Most of Data Card or USB Modem. If You Want To Free Unlock Your Modem Then You Can Use Dc Unlocker Cracked Version. This is the Cracked Version of DC Unlocker. So You Do not Need Any Credit.

DC Unlocker

Instraction To Unlock Your Modem:

Extract the content of the .zip file
Once you extracted all the required files, run "dccrap.exe"
Disconnect to the internet and plug your USB Modem with a different provider SIM. (for Huawei users, you dont need to swap any SIM). And insert your modem to the USB port.
Choose what "manufacturer" that your modem is. (Huawei Datacards or ZTE Datacards... choose that matches on your Modem.)
Click the magnifying glass, and it will search for plugged USB modems.
Once the modem is detected, go to login page, type whatever you want. It's just a lame login system.
Click Unlocking menu, then choose "unlock".
Wait till the unlocker program says that, unlock is successfully done.
Enjoy your unlocked Modem.

==Download info==

Version: 

Size: 2.5 MB

Official Web Site

Official Download Link

Download Link-Cracked Version