
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.
Version 1.1.2 – Changes:
- Fixes an issue where some USB directory layouts result in an empty file list.
- Amended USB behaviour to help resolve issues users experienced with some USB memory sticks when using the File Loader.
Please be aware there is currently a 256 item limit (files and/or folders) to assist improved USB memory stick performance.
Download: TheC64 Mini Firmware v1.1.2 (1211)
source: thec64.com

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.
Version 1.1.0 – Changes:
- New File Loader functionality. Please see File Loader for full details.
- Further improvements to response times.
- Fixing one small issue with the German Virtual Keyboard.
- Adding the missing help function in ‘Avenger’ to a joystick button.
Download: TheC64 Mini Firmware v1.1.0 (1564)
source: thec64.com

A new version of the firmware for the Ultimate-64 / Ultimate 1541 II / Ultimate 1541 II+ by Gideon and some enhancements by Markus is released.
Changelog of Ultimate-64 / 1541 Ultimate 2+ by Gideon
- NEW: Audio Mixer
- 1541 Ultimate II+ only:
- 1541 Ultimate II and II+ only:
- Can now be used in Ultimate 64
- Ultimate 64 only:
- SpeedDOS Parallel Cable (needs e.g. DolpinDOS roms)
- Interface type: Ultimate Menu picture overlay (HDMI-only)
- USB keyboard support. Like earlier firmware, press scroll/lock to enter/exit the Ultimate menu.
- Replacement of Charrom and BASIC.
- Display *.64 files as a directory via FTP:
- Every chosen FTP username enables this feature (*.d64 are shown as directory AND as *.d64 files)
- The username “d64″ deactivates the listing of *.d64 files (*.d64 are only shown as directory)
- The username “d642″ disables this feature completely, (*.d64 are only shown as files)
.. and there are many improvements not present in the changelog.
Note for the Ultimate 64:
You will need a kernel, basic and character rom after the upgrade. These roms are not included in the update. These roms are distributed with vice-emu, but you can also find them on zimmermans.net.
For instance, you could use these roms: 901225-01.bin (char), 901226.bin (basic) and 901227-03.bin (kernal). Roms with the .rom extension should also work.
Changelog of Ultimate-64 / 1541 Ultimate 2 / 1541 Ultimate 2+ by Markus
Changes in this release (compared to 3.3):
- You can now flash more alternative kernals and floppy roms (1541 Ultimate II+: 2, Ultimate 64: 3).
- Kernals and floppy roms can be loaded without flashing
- Pressing the following keys while turning on the Ultimate 64 will change the video mode to
- D => DVI
- H => HDMI
- R => RGB
- C => Composite/S-Video
- Fix writing to kernal via TCP Port 64 on Ultimate 64
- Fix Fast Reset on “Original” Kernal on Ultimate 64
Download:
source: ultimate64.com github.com/markusC64
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