A few problems I need help with

Ok so i have a wii u i tried replacing the CM9 and CM10 things on but in doing so i knocked off the things beside it i think are caps they are tiny and yellow, could i just bridge these and be problem free or do i have to replace them? And the second problem i have is with the gamepad, it works while plugged in but when i unplug it it dies like the battery is flat but this continued with a new battery and its not changing even when plugged in for hours, any help would be appreciated