I recently purchased a broken ipod nano 2nd gen to use for parts to fix another one but was surprised to find the only thing wrong with it was the center/action button is not working. I reset it but it still did not work so i opened it to find that the previous user had gotten sand inside it so i cleaned out the sand. I put my other hard drive inside it to test the button and it is definitely the middle button not working and not the hardware itself. I figure some grains of sand may be preventing the center button from working although i am not positive as i do not know exactly how it works. So i was wondering if there are any guides/videos to taking apart the click wheel out there for a 2nd gen nano. I figure if it cannot be easily fixed i either now have a "nano shuffle" OR i can just buy a remote for it. Any links/advice? Thanks!