Question The Fifth Element

[zstoja]

Hi to all.

I have a problem what is this antenna in my Dell Latitudew E5570.

2 black + 2 white wires are OK, WLAN + WWAN.

But there is 5th wire, like red. What is it?

https://i.ibb.co/89ZPn7C/s3-l1600.jpg

https://i.ibb.co/zNm6ZYG/s2-l1600.jpg

 

[nigelivey]

Bluetooth??