Okay, so I would post this as a comment, but I want to make sure people see this. The little foam antenna is INDEED part of the wifi antenna. If you broke this, you need to order a new one to get wifi working properly again. I just replaced this and wifi works great now. :) So this indeed is part of the wifi. Hope that helps. Good luck with your repairs everyone! Oh, and PS; DON'T forget to put the LCD screws back in before you put the digitizer back on. I did..... BUMMER! lol but it isn't too much of a big deal.