Battery Door Question?

[Old Jim]

Has anyone got any idea what is on the inside of the battery door? There's a plate of some kind with two contacts on it. And there's two matching contacts on the phone itself. I thought at first it was a antenna of some sort. Today I saw a photo of the inside of a door for the HTC Thunderbolt and there's a similar plate with four contacts instead of two. Could the NS4G have the same wireless charging capability as the Thunderbolt or something very similar to it.

Here's the link to the article at Android Central to look at the inside of the door:

HTC Thunderbolt wireless charging back cover at FCC | Android Central

 

[KoukiFC3S]

It's the nfc chip.

 

[Old Jim]

Yeah, I found out it was the NFC antenna. But it does look similar to the wireless charging door of the Thunderbolt which does not have NFC.