This page describes how to perform a firmware update for our KAC TM62100 midi kit.
Firmware files
Here are the currently available firmware versions. Unzip them before loading them into the updater tool
TM62100 Firmware 1.03
FEATURE: Added MULTI note assign mode
TM62100 Firmware 1.02
BUGFIX: Config menu was not accessible for some people
TM62100 Firmware 1.01
BUGFIX: Note on with velocity 0 was not recognised as Note Off
How to Update
Firmware updates can be done via Midi Sysex by using a 3rd party tool (MidiOX on Windows, Sysex Librarian on OSX).
Bootloader mode
To access the Tm62100 bootloader, power down the synth and play an E-minor chord (E G B) while turning it on. You might here some strange sounds – that is ok. When in bootloader mode, the keyboard will not react.
Update Using MidiOX
- Enter the Bootloader mode on TM62100 as described above.
- Connect the midi input from your SK-synthesizer to the output of your computer.
- Open MidiOX and select the correct midi output via Options -> MIDI Devices
- Go to View -> SysEx
- enter the configuration Sysex -> Configure. Activate “Delay after F7” and set it to 200.
- Open and send the firmware update file File->Send SysEx File. Use the file with .syx extension.
- Wait until the update is finished.
- When the update is complete the new firmware will start.
Update Using Sysex Librarian
- Enter the Bootloader mode on TM62100 as described above.
- Connect the midi input from your SK-synthesizer to the output of your computer.
- Download Syex Librarian from and install it.
- Open the firmware syses file with .syx extension
- Go to Sysex librarian – Preferences and set “Pause between played messages” to about 200 (anything larger than 100 is fine)
- Select the correct midi interface
- Press play
- Wait until the update is finished.
- When the update is complete, the new firmware will start.