I know there are issues with iOS if a Bluetooth device changes its services, but Nordic side-steps that by adding one (or removing one?) from the device MAC address when entering DFU.
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.
It's an odd one - It's the first I heard of that.
I know there are issues with iOS if a Bluetooth device changes its services, but Nordic side-steps that by adding one (or removing one?) from the device MAC address when entering DFU.