Why does my Samsung Galaxy Core Prime display China Telecom SIM should be inserted?

When i insert the sim in slot1 it displays a message of insert the simcard of china telecom and 4g is also not working, so please help me so i can use 4g internet on samsung core prime sm-g3609

Where was the phone bought? Looks like it is locked with China Telecom.

Not the answer you were looking for?

Are you on the best cell phone plan?