Some USB devices tend to sink a lot of corrent during the plug-in, this cause an instant shut down of the system

and another problem is that sometimes USB devices want more current than the board can supply.

So, remove the fuse and connect the wires like below, additionlly add a bigger capacitor.

 MG 2994

 MG 2872

 MG 2973

 MG 2970

 MG 2971