How do I bypass the property of apple authorized seller

Take it back to wherever you got it. If you purchased it from an authorized retailer, they accidentally sold you a demo device. It can't be used. Otherwise, you purchased a stolen demo phone.

If you can't get your money back, take it to the police.

Please explain. At first reading, it seems as if you’re asking how to reset a device that was stolen from an Apple retailer so that you can use it…

Dece îmi arată demo pe telefon

No

You need to go back to the Authorized Reseller it was bought from for assistance.