I found nothing on the service manual about this, if is a kind of ground circuit, or interference filter. Pictures attached.
Probably yes, but i can make phonecalls and use the wifi, even sometime i got 3G connection, maybe is enough with the tiny part that remains on the phone???.i ask cause i gonna replace the touch screen cause is really broken, and was thinking if i buy this strip and not all the middle case. I found 3 pictures to have a better idea where this strip got contact to the mainboard, to clear was for function this strip has. Follow the red arrows. Is amazing to have so quick answer, i will keep looking thanks!!!