you should have the following displayed before proceeding to the next step.
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connect modem to PC.
Insert another Network provider sim(Alien sim) on the modem,
A popup requesting for unlock code will be displayed.
click "Cancel" and close the modem interface.
Now open the dc-unlocker and select "Automatic detect" under device model as on the screen shot in step 1 . wait for your device details to be displayed.
Click on server and enter your login details( user name and password you used in doing the payment)
Now click on "UnlockinG" ==> DO job
Four credits will be deducted and your modem is UNLOCKED.
NOW set up a profile for you ISP AND Enjoy your unlock modem
So how do i get free internet after unlocking this modem?