! Important ! Disclaimer

The SFC-Mini V4 has an anti-brick mechanism and can always be brought back to life. That being said, do not interrupt the firmware upload process.

What you will need:

Firmware updates available:

MAC firmware update tutorial

  1. Download and unzip the MacOS updater
  2. Run it, MacOS will report “Apple could not verify “SFC-Mini_V4-MacOS_FW_1.2_debug” is free of malware that may harm your Mac or compromise your privacy.”
  3. Give MacOS the necessary authorisations in System settings → Privacy & security, scroll all the way down and press “Open Aynway”, press “Open Anyway” again when the with opens, enter your password
  4. If the updater reports a failure, please send me the content of the lower text field and run the Windows method below instead with the Bin file

Windows firmware update tutorial

  1. Download the latest firmware file from the left column section

  2. Unplug the controller, press down the 2 switches under MOD. MIX/AMOUNT then plug it in back and release the switches 2 seconds later

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  3. MAKE SURE YOUR CONTROLLER IS WELL PLUGGED IN AND CANNOT DISCONNECT DURING UPDATE. Don’t use a bad/unreliable cable or USB port.

  4. For Mac OS, skip to step 8, for Windows, If this is the first time you are updating, download the latest Zadig version: https://zadig.akeo.ie/

  5. In Zadig, in the options menu, choose “List All Devices”

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  1. In the dropdown menu, choose “STM32 bootloader”. DO NOT select another device.

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  1. Click on the “Install Driver” button

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  1. After installing drivers, both driver fields should match

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  1. Navigate with a recent version of Google Chrome to: https://devanlai.github.io/webdfu/dfu-util
  2. Click the “Connect” button

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  1. Select “STM32 BOOTLOADER” in the list and click “Connect”

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  1. Select the first bullet in the list wi the mention “Internal flash”

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  1. Press the “Choose file” button to browse to firmware .bin file and press “Download”

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  1. The firmware update process will start and it will go through 2 steps: Erasing DFU device memory and Copying data from browser to DFU device
  2. When the update is done, it will display “Wrote xxx bytes, Manifesting new firmware, Done!”

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  1. The LEDs will flash and the controller will reboot