hey today i tell you about unlocking the data cards.this process is very easy first of all in today life we are using 3g data cards in which there are not any lock for sim....................they are locked by network means when we insert another sim and start software it may close itself.so to unlock there is a very small process
1> first create a new profile
2>then enter apn name of your sim you want to use on data card then save and make it default.
3>now remove the sim and not the data card from your computer and insert the sim
4>minimise the software
5>now open the network connection from windows and dial your connection
6>here you goes you unlock your data card