BlueRetro Firmware Upgrade Tutorial

The firmware for this update step is the integrated firmware (do not use the official darthcloud firmware update, it may cause bricking)

If you don’t want to use this method to update, please refer to the official darthcloud GitHub steps

Open source project github: darthcloud (

Retroscaler github:

1.Connect the blueretro to your computer via typec cable

2.Download the latest BlueRetro firmware and NodeMCU-PyFlasher software

3.Double-click to run the NodeMCU-PyFlasher software

4.Select serial port and firmware

5.Click flash nodemcu to start the update.