Originally Posted by hawhill
The Vol- button might be pressed the whole time, it does not matter if it is ever released, it just has to be pressed upon K3 reset. As I said before, I think I'd just tape it down when timing is unclear.
I do not press my "magic key" until just before releasing the power button. The only requirement is that the "magic key" (Vol- on a K3) be down when power is released. A fraction of a second between keypress events is fine (enough for switch debouncing).