I have a switch with no power. P13 was the issue, it has been replaced and it now has power (woop!) now the issue is it does not display on the dock. I have a dissected dock so i can plug it in the other way and it displays on the dock that way. This seems to be a semi-common issue and have not found a fix for it yet. I have already replaced P13 (twice) M9 and USB port. this board also does not have the diode arrays. completely stumped how it can display one way but not the other and of course thats the way the docks are.