We have inspected your Wii U system. There are problems with major HDMI video output components on the motherboard which cannot be repaired. The motherboard needs to be replaced and would need to come from a working system. Motherboards are expensive and to avoid the additional labor required to replace all parts we would just sell you the replacement unit with the damaged trade in. We do not have Wii U units in stock but can order one at $219.95 with the damaged trade in. We can also hard set the standard video cable output and include cables which will allow the unit to operate normally in low definition composite video (yellow) output. This would cost $67.95 and we can proceed with the low definition partial repair option. We can also scrap the damaged beyond cost effective repair option system and close the order if you would prefer. Lastly, we can simply ship back your unit to you and the inspection and return shipping fee is $26.95.