Makcu Setup (Flashing)

This guide shows how to flash your Makcu safely so it runs smooth and error-free. We keep the steps simple for beginners.

Good to know: “flash” = write/update the firmware. “Left/Right” = the two sides of the board.

Pre-Setup

1) Run from your 2nd PC

  • To avoid leaving temporary files on your main PC, run everything from your second PC.
  • During use, the tool will unpack files into a local temp folder. This is normal.

2) Download the AIO Tool

Get the latest files here: Download AIO Tool

3) Open MAKCU.EXE and let it update

  • Launch MAKCU.EXE and allow the auto-update if prompted.

4) Required hardware

  • One USB cable to connect the Makcu to your 2nd PC.

Flashing

Makcu board

Step 1 — Flash the LEFT side

  1. Press and hold the LEFT button.
  2. While holding, plug the USB cable into the LEFT USB port of the board.
  3. The AIO Tool should show: “MCU connected in flash mode”.

Left side connected in flash mode

  • In the AIO Tool, click Flash Left.

Flash Left in the AIO Tool

  • Wait until the process completes.
  • Unplug the USB cable from the left port.

Step 2 — Flash the RIGHT side

  1. Press and hold the RIGHT button.
  2. Plug the USB cable into the RIGHT USB port.
  3. In the AIO Tool, click Flash Right.

Flash Right in the AIO Tool

  • Wait for the flash to finish, then unplug the USB cable.

After Flash

  • Close the top cover and store the cable safely.
  • If something looks wrong, re-do the steps slowly, one side at a time.
Troubleshooting
  • No device detected? Try another USB port/cable and hold the correct button when plugging in.
  • Stuck during flash? Close the AIO Tool, reconnect the board in flash mode, reopen the tool, and try again.
  • Antivirus blocks the tool? Temporarily allow it, then restore protection after flashing.

Need help?

Contact support: cheapydma@gmail.com or join our Discord.