That could literally be anything. In order to help you we need to know everything you have done and pictures help too. Are you powering it from a DC power supply? Are you using batteries? Are they charged? Is the Wii motherboard trimmed?I'm working on a wii and when i tried to power it on it made a tick sound and then sits off immediately. can any one tell me whats wrong with it?
Yea a short could cause it too. The 2901chip is detecting a problem and is shutting the power systems down.Also your desoldering on the ports looks messy. It could be causing a short.
It is very likely it is not turning on due to a short. You can use a multimeter to see if any of the connections on the ports are creating a short. You could use your soldering iron to clean up the connections and use some rubbing alcohol to clear away the flux.do you think you could give me some tips for a first timer anything could help me now