Original post by: oldturkey03 ,
@treeofeden make sure that you are using the right headphone jack/hold switch assembly. It has to be for a 5th gen iPod. They are not interchangeable. Since you already swapped the logicboard it is unlikely that both have the identical error. I suggest that you get a known-working assembly from places like this [product|IF195-010] and make sure that you identified your iPod properly. the Video is not a Classic etc.