How to unblock Airtel 2g 3g sim

As you all know after some time use free internet setting we see that in our sim internet is blocked but now i am here with an amazing airtel 2g 3g trick with the help or this trick you can easily unblock your blocked sim you just have to follow these steps :-

step-1. Deactivate All The Data Plans in your airtel sim ( 2G And 3G Both By Dailing 121 Or 198 ).

step-2. Just Leave your Sim For atleast 48 Hours friends.

step-3.Now Check That Whether your Getting Connected With apn - airtelgprs.com or Not.

step-4. If you are Getting Some Errors While Connecting Then U Have Successfully Deactivated Data Services.

step-5. Now The Final Step Just Activate Data Services By Dailing this number *567*11# 

And 3G Also By Sending 3G To 121

enjoy friends hope you like my post.