Burned out motherboard cableon HTC one m9?

So I disassembled my phone to replace the screen and frame assembly, and when I unplugged the motherboard connection cable (the one that goes from the upper daughter board to the motherboard, runs over the top left corner of the battery) something shorted and a circuit on the cable burned out. I have no idea why this happened, since the battery was completely depleted. I'm replacing the cable, but is there anything else I should worry about here?