how to solve my sim not supported

Can you read?

Only the carrier that locks the iPhone can officially unlock and if you qualify, not Apple or anyone.

Return the iPhone for a refund, I don't think you qualify since you are not the carrier customer.

prince2410 wrote:

please i actually ordered the phone from china and it came with it box..and there was a gevey sim inside it but it doesnt work

Gevey SIM is illegal in many countries.

Sounds like the iPhone is carrier locked.

Only the carrier that locks the iPhone can officially unlock and if you qualify, not Apple or anyone.

Sorry, you got scammed, we can't help you.

Report to the online website where you made the order.