This Topic is searched on Google by many users day-by-day as many users want to use there sim in any modem without unlocking it so I am here with a new trick
Step by step instruction:
1. Insert SIM in Modem
2. Modem show invalid SIM, just ignore it and close modem software.
3. Start NOKIA PC suite.
5. Go to Configure. Select your data card modem,and make all operator apn setting as like when we use Nokia mobile connection.
Eg:- Apn for Airtel – airtelgprs.com
6. Finish set up.
7. Now connect to internet through PC suite.
8. Finally your net is connected without unlocking the modem.
For any help regarding this post just mention in comments.