Default Wifi comes and goes. Hardware problem?

So I have two n5 one is white and the other is red. The wifi on the white one works 100% like it is supposed to while the red one the wifi comes and goes. Sometimes it would work but after 5m of usage it would stop working. At first I thought it was the router but after seeing the wifi is working fine on the white n5 I changed my mind. I did everything I could think of. Factory reset, flashed the original images, everything to stock and the problem still persists. I called Google and told me that the phone is still on warranty and offered me an exchange but I have a problem. I have already dropped my phone and I think they won't take it unless I tell them to repair it. Here is the damage. They won't take it right?