Kpro v3 U4 burned pin HELP!!

[k2_0Chris]

Hello everyone,
i have a PND ecu with a kpro v3 installed. it was working fine until yesterday i was trying to start the car and it failed to start. then i noticed the led's on the k board were not lighting up with the ignition on so i removed the cover to find that the U4 chip had burned up. I wanted to know if anyone knew why this would occur and the best was to get it fixed. i pulled the board off and inspected behind it , it seems that only the top of it got the damage. also the serial number on the unit is 13343

[Hondata]

U4 can be damaged from incorrect insertion of the KPro, laptop power supplies causing ground loops, reverse polarity, incorrect wiring or a bad ground. It usually takes a combination of those factors to damage the KPro.

Is this an engine swap? Have you relocated the battery? Is the master ground on the intake manifold ok?