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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.
@Gordon
Ahh - where did you read that? I should change the wording - you definitely don't need to do the second method ever now - the App Loader one works fine, you just need to click the 'upload bootloader' link the first time.
Do you have an older iOS device you could try? I've got a 12.5 iPad here and that works fine. Recent iOS versions broke something on the nRF toolbox app - it does work, but as it mentions on https://www.espruino.com/Bangle.js2#firmware-updates you just have to keep trying and trying and trying and eventually it gets there.