how can i fix my sim card?

What's your phone Brand and model?
You can remove the sim lock from your phone using unlock code.Unlock code is the best and safest way to unlock phone.If you have a old model mobile then visit http://www.unlocking4free.com/unlock-your-phone here you need to specify your phone model, country, IMEI number of your phone, Network provider to which it is locked. Then they generate unlock code for your mobile at free of cost.

sahana
November 2013