HI, I just purchase the bluetooth model for a car mechanic friend who is keen to get started. The carloop Bluetooth uses the RedBear duo which had firmware version v0.3.1 . To upgrade to the latest v0.3.3 I followed the upgrade procedure using part1 and part2 bin files using this guide https://usermanual.wiki/Red-Bear/DUO/html
Now, the RedBear Duo does not seem to work but if the setup button is pressed while the USB cable is connected, the red light flashes. Any help would be much appreciated