may ipad 2, appear sim card "no Install"

My ipad 2 serial number DLXFGAWTDFJ1 Model MC773LL Version 5.1.1 (9B206)

In general setting, Cellular Data appear "No SIM" and than message "SIM CARD No Install"

My vendor Telkomsel, said, sim card is no problem

What I can do ?

Thank You