Chosen Solution

I changed all with a new cable (headphone jack + hold switch) and it didn’t work. I tried two perfectly functional backplates (headphone jack + hold switch) on this iPod 5th gen, and none worked. I tried them on a different iPod (a 6th gen) and they worked fine. clearly the problem is NOT replacing the entire hold switch circuit with headphone jack, the problem is something else. it’s very frustrating

@aaarchvz make sure that you A. have the right cable for your model iPod and B. that the slider is seated in such a way that it engages the switch