My camera says unknown part and I am not sure how to get this resolved

If the purchase is recent, return it for a refund A.S.A.P.

The unknown part error is as important as the Check Engine light in your car.

—It needs to be serviced A.S.A.P.—

Service Checklist:

• iPhone service pricing.
• Check AppleCare Coverage.
• Get your iPhone ready for service.

Click ▶︎ Start a Service Request. ⚛️

Need more help?

• Call Apple Support at 1-800-APLCARE. 📞
• International Support. 🌐
• Contact Apple Support. 📝
• Chat using Messages. 💬

Click ▶︎ Check Repair Status. 🔧

You had previously stated the purchase from Verizon, so visit a Verizon store A.S.A.P. for the return.

Verizon sold you a returned damaged device, return it to them.