Q: iphone 6 touch id stop working!

when I replased my screene on my iphone 6 my touch id stop working.

I used my old home buttom and metall plat back on my screene.

But the touch id dont work.

!!!!Now to the question, kan I replase the kabel that stucked to the metall plat behinde the screene or is that kabel also locked to motherboard!? I think I damage it!

Greating Joakim