Had i think a bird hit my phantom, it crashed on concrete. The legs were bent, which was good i think, if your gonna land hard land on your feet. But now i get the strobing yellow after the green and red after power up. To be clear, i was normal untill the crash then only after the crash do i get the yellow. I have tried pushing that little button on the receiver circuit board, the circuit board then blinked yellow off and on. Their doesnt seem to be any loose wires or damage to the circuit boards. Im able to do servo test through the software app. any ideas please.