MICRO Firmware update procedures

Last updated 09-10-2025

STOP!
Having connectivity issues? It is NOT likely a firmware update problem. Follow these steps instead:

• Try a different cable
• Try a different port
• Do not test with steam or gamepad tester. Always check with the windows controller configuration tool (type "joystick" at the windows prompt)
• Hold the appropriate button while plugging in the controller to force the correct mode (PC or PS5 or Xbox, etc)
• Never roll back to an earlier version of the firmware. We may introduce new features and that can change how and what data variables are stored in memory.
• If the above steps do not help, open a ticket on our discord.

What PCB do you need to update?

There are currently 3 generations of MICRO PCBs. Generation 1 PCBs are green. Generation 2 and 3 PCBs are white. Generation 3 PCBs differ from Gen 2 visually in that their USB port is longer (sticks out slightly) and there is a black rectangle visible where the option pegs are.

There are 2 chips on the Gen 2 (M2) MICRO PCBs. Both can have firmware updates. Firmware updates for the first chip on a Gen 2 MICRO PCB are handled at https://config.junkfoodarcades.com/. These are completed using bluetooth.

The Gen 1 PCB, the Gen 3 PCB and the second chip on the Gen 2 MICRO require a desktop installer to be run. These chips do not get frequent updates so you may not need to do this step frequently.

Please note: As mentioned above, Gen 3 MICROs are different and do NOT use the configurator and have this card (shown below) included that explains how to adjust LEDs and more.

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Performing the Firmware update 

M2 boards

First ensure you are up to date on chip 1 by performing the Bluetooth firmware update process on the web configurator. Be sure to leave it plugged in until the device has rebooted.

Next download and unzip this file. Do not run it without unzipping. hold the "HOME" and "SELECT" buttons while plugging in your Micro. Click "start" on the update tool and wait for the update to finish.

M3 boards

Download and unzip this file. Do not run it without unzipping. hold the "HOME" and "SELECT" buttons while plugging in your Micro. Click "start" on the update tool and wait for the update to finish.

NEVER flash your micro with a firmware that does not come from our website. The Micro has a custom firmware. If you have any questions once you get your micro in the coming days, just post them in our discord.