I have had this problem as well and believe I have found somewhat of a solution. You need to pry off the outside cap which is glued on after removing the 2 screws from the inside of the earpiece swivel. (The side which would be closest to your head if you had the earphones on) The cap with the seinheiser logo is glued on so I recommend using a heat gun or blow dryer to loosen the glue. Beneath there are two smaller phillips head screws.