Originally posted by swanlefitte "Broken" dirt in the way? My "broken " phone will power on an off until i make better contact to my leads i soldered on to charge it.
OK. I buy that.
The K100D switch is rotary in nature for power on-off.
The contacts are sliding, making physical contact and in effect self cleaning to a greater degree than a push button switch in a phone
that will also perform the same function but to lesser effect.
edit: I take that back. Modern push button switches use carbon pads to contact the traces on the PCB, providing zero self cleaning action.