Well, this really is a generic error. I've seen it before on the Wii, it's usually related to the console getting confused in some way or another. It probably means your gamepad has a problem with the Bluetooth intercepter and the outputs are all messed up. It's ideal you buy a new gamepad but you can probably simply change out the Bluetooth intercepter
My wii u pro controller (black) charges fine, displaying a orange light and it (the light) times out after 25-30 minutes. When I hit the sync button, nothing happens. The controller stays in a normal state. There are 3 things on the back of my controller: a sync button, a screw and a hole (about the same size as the sync button, slightly smaller) I’ve watched 3 videos and seen 2 forums and apparently nobody I’ve seen has this problem. I tried to use Nintendo’s forums, but for some reason it keeps on saying ‘the link you used to access this page is no longer valid’ despite using it 1-2 minutes after the link was sent (it said 24 hours max) so I had to find something new. Could you please tell me what my problem is? I’ve tried most of the things that you’ve used but they don’t work.