How do I repair a broken hold/lock switch?

How do I repair a broken hold/lock switch?

I have opened the iPod and went as far as taking off my battery to get a better view of the hold switch. i didn't see anything that caught my eye the orange cables were fine.I have heard of a tin foil method but i have no clue to put tin foil. Is there a way to find whats wrong with it and repair it?

answers:

I bought the bits and replaced the hold switch myself using the ifixit guide and it works again. I'm thrilled!