How can I unlock my BSNL 3G Datacard and use another SIM card for data network?
I am not sure of ways for cracking BSNL 3G data card. But the service provider(BSNL)
is now providing data cards which can use another networks.
It is manufactured by D-Link and i am using it too.
If the device is locked, you can try asking service support to unlock it. It may be free or paid, based on the contract or purchasing agreement.