This can also to used to unlock any Data card like Idea netsetter,Aircel dongles permanently Follow these simple 10 steps to unlock your wireless USB modem.
1. Universal master code generator (Download here or here ) Universal master code is used to calculate the unlock and Flash codes for Huawei E-173
You can also you DC unlocker software to get the unlock code for your modem
2.Now plugin your data card(just ) and run.Now enter the IMEI which you can note down form your device.
3.Click on the Calculate button.Now the Unlock code and the Flash code will be calculated.
4.Now insert a different Sim like Aircel or Idea or Airtel (Different form the Data card provider)
5.You will be asked for the unlock code,enter the unlock code to unlock 3G data card.
if this method not works for you start your work from 6th step...
6.Now download and install Huawei E-173 Firmware (Download Huawei E-173 Firmware) to update your firmware(password will be the flash code generated by the universal mastercode)
7.If the flash code or the Unlock code is asked enter the respective code previously generated.Its all done.
8.Now you can use the mobile partner as your dashbaord.to try this download the Huawei Mobile partner Software (download it here)This software is a GUI to create a new profile to connect to the internet.