NRF52832 Bluetooth LE modules with Espruino

As @Robin says, take a look at http://www.espruino.com/MDBT42Q - that should answer a lot.

If you're ordering a module from the Espruino shop then it's all pre-installed, otherwise, direct from RayTac there is no software and you just use the MDBT42Q firmware on the Espruino site.

Q#2: Is the bootloader shipped with the firmware provided by Espruino?

yes, so OTA updates are easy.

Q#3: What software did you use to flash the firmware on yours? (I have Segger programmer)

If it's segger, just drag the hex file onto the JLINK drive that appears.