Note to self and others: please don't plug in/out a TRRS into your keyboard while it's powered. The TRRS usually shortens pins during insertion/removal, which c

Note to self and others: please don't plug in/out a TRRS into your keyboard while it's powered. The TRRS usually shortens pins during insertion/removal, which can damage your keyboard. Most keyboard designs do not properly guard the circuitry against the evil of TRRS.