Hi, I bought a iPhone from a Guy who dropped it on the driveway. It had a Otterbox Defender on it, so, the phone was still...

I just broke something on the main board... I can't get the signal ! Or when I get it, it's only for a few seconds, than it drops down to no signal... I broke the tip just beside at the right the little pointed thing on the image... tryed to glue it but it seems worst... it's still on guarantee but I played with it, I changed the frame for a new one because it was folded due to a truck passing on it, well, do you thing they would echange it anyway ? When they exchange it, do they tear it down before exchanging ? Thanks !