How to make an iPhone from Verizon my phone though my carrier is T-Mobile?

I got an iPhone my cousin found and the carrier Verizon. IT ABSOLUTELY DOES NOT HAVE ANYWHERE TO PUT A SIM CARD.No, there's no dot to pick with a pin. It doesn't have a sim card to pull out. I already restored it with iTunes, but i don't know how to go about making it mine. Do I have to take it to T-Mobile to make it work? Or Verizon?

Well you would need to get it unlocked. Or buy an unlocked one. You can sell it and buy an unlocked one.

Your best bet is to look up if T-mobile Will flash it for you, if not I think its just a glorified Ipod

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