Turn strap holder 90 degrees so that the pin on the holder fits from the outside in the strap holes. At one of my watches it pointed from the inside to the outside, which does not work very well.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Tx Yes, without a photo, the mechanism is not entirely clear :)