Firmware upgrades for THEC64 Mini provide new features and/or correct any technical issues. We always recommend that you use the latest version of the firmware.

Ensure that your USB memory stick is formatted using FAT32 (with MBR), else your upgrade file will not be detected. See the FAQ for further details.

The SHA-256 Checksum for firmware 1.0.8 is:

The checksum is to validate that the file you have downloaded is the same as the file originally provided. There are a number of utilities available for download online that will verify a SHA-256 checksum for you. You can download and install the firmware upgrade without performing this check, but validation is recommended.

Version 1.0.8 – Changes

– Includes firmware optimisations and improvements to THEC64 Mini input response times

Coming Soon!

Planned Changes for upcoming firmware includes:

– Choose from a selection of disks on a USB memory stick
– Allow multi-disk files/games to be easily accessed and switched between
– Other update features to be confirmed ASAP!

Click the link above to download the latest firmware upgrade for THEC64 Mini. The USB memory stick you save this file to must be formatted to FAT32.


  1. Check the current firmware version on THEC64 Mini by selecting the SYSTEM icon from the OPTIONS on the HOME screen, and then choose System information from the menu. Look for the Build version (e.g. theC64-1.0.1-argent)
  2. Check that the latest version linked to above is greater than the version installed on your Mini
  3. Download and save the file (e.g. theC64-1_0_5.bin) to your USB memory stick. Don’t place the file inside a folder on the stick or rename the file. If you do, THEC64 Mini won’t find the upgrade
  4. Insert the USB memory stick into an unoccupied USB port on THEC64 Mini
  5. Ensure you have a joystick or alternative controller connected to another USB port
  6. Select the SYSTEM icon from the OPTIONS on the HOME screen on the Mini, and choose System Information
  7. The upgrade file is detected and you are asked to close or apply
  8. If you apply, then the upgrade begins. If you choose not to upgrade at this time, select Close and press FIRE, or just press the MENU button on the joystick
  9. After a successful upgrade, your Mini will shut down and restart automatically.
  10. You can check the firmware version afterwards by following point (1) above.

Note that you cannot install a firmware earlier than the build version currently installed.

Previous firmware upgrade files are available here.