Fried FC. Need clarity!!

So I got this flight controller. Added buzzer and I fried the SMT32 chip (PA12 got fused to gnd) I did my continuity tests and that's the only component that's dead. Whilst doing my tests. I noticed around the buzzer are two sets of pads. 2 makes with + and 2 with - As I understand. Those are all for the buzzer.

However continuity tests revealed. That the - pads are indeed - and that the smaller + pad is indeed +. The funny thing is. The pad to the right. The biggest pad marked with + made the test beep. Meaning it is grounded. There are no shorts or am I missing something?

red circle is the part in question! pad got shorted? http://imgur.com/vtbugww