Have tried pairing when the watch is running normally, and also when booted to the bootloader
You wouldn't be able to pair when it's in bootloader mode anyway, but maybe you could try running the NRF Connect app on your phone and see whether the Bangle appears as a device called DfuTarg when it's in the bootloader mode?
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.
You wouldn't be able to pair when it's in bootloader mode anyway, but maybe you could try running the NRF Connect app on your phone and see whether the Bangle appears as a device called
DfuTarg
when it's in the bootloader mode?