Most of the Indian 3G data providers will provide free data usage for 1-3 months for attracting customers after that they will increase their data rates.
So, the customers want to shift their connection to another company which is providing cheap data plans with high speed and unlimited data usage with low price. 

So, to restrict this 3G Data cards are locked by the company provider So, that the customer cannot switch to another network provider.

To switch to another network provider you may need to unlock the Data Card first.
So, today i'm going to guide how to unlock 3G data card/USB Dongles
First of all you need DC Un-locker Software

  • After Downloading Dc Unlocker Software open the rar file with winrar/IZArc
  • and open the dccrap.exe file
  • and install it on your System
  • Identify the model of your Dongle or Data card first (For ex:-Huawei, Micromax (MMX) ZTE etc
  • Plug-in the and in DC un-locker click on “Select Manufacturer” in dropdown list select your “device manufacturer” and below in Select Model box leave it to “Auto detect”.
  • As a final step, Click on Unlocking( For Huawei modem click Calculate to obtain the unlock code).

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