Put a half second spray of this stuff into your jack (phone can be on or off, doesn't matter because the solution is non-conductive as said before) and then put your earbuds in and out, and twist the plug in the jack. Do this for about 30 seconds.
Put a half second spray of this stuff into your jack (phone can be on or off, doesn't matter because the solution is non-conductive as said before) and then put your earbuds in and out, and twist the plug in the jack. Do this for about 30 seconds.