Take a look at this instructional video and learn how to take apart and put together the iPod Shuffle. First, you'll want to remove the control button. You can do this with a box knife or an exacto knife. Next, you'll want to take out the on and off button. Remove the USB case next. The case is glued onto the iPod, so you'll want to use the knife again to slice and wedge it apart. If your shuffle stops working, most likely the problem is due to a blown LED, a loose connection, or something simple like that. Lastly, you'll want to extract the circuit board. You can perform this task by using a ball point pen. To reassemble the iPod Shuffle, merely go perform this process backwards.