I followed the instructions on this page but I'm stuck at the step "long-press BTN3 to go to the clock". After the firmware uploads, the display shows the Bangle.js screen containing firmware version, copyright etc.. and long-pressing BTN3 triggers a quick flash of the screen which then turns black (with back light on, but nothing displayed on the screen).
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.
I followed the instructions on this page but I'm stuck at the step "long-press BTN3 to go to the clock". After the firmware uploads, the display shows the Bangle.js screen containing firmware version, copyright etc.. and long-pressing BTN3 triggers a quick flash of the screen which then turns black (with back light on, but nothing displayed on the screen).