KMag absolute the train engine

Ah I see there is a confusion. The button under the space bar is the flashing mode button, only for flashing new firmware. The factory reset is for when you brick the keyboard.

When I flash firmwares I use the button under the space bar. I remembered screwed up once , but I forgot which key combo I used to reset it.

The hardware reset button just let the keyboard boot into flash mode. If nothing is done, you can simply unplug and replug so the keyboard would boot into normal mode again

Source: I uses qmk from the terminal