MASK1 current version : 3.2

To check which firmware is installed on your MASK1, power it on while pressing the last two black keys. Then press Param >> to start normally.



11 Jul 2023

  • Fixed ignored notes received through MIDI when disabling Local Keyboard


20 May 2023

  • Total polyphony is up to 12 voices instead of 10
  • Improved oscillator quality
  • Numeric display for the volume level
  • Improved factory voice presets


07 Apr 2023
  • Improved factory voice presets
  • Fixed freezes happening with the arpeggiator
  • Improved arpeggiator behavior with sustain pedal and live editing

How to update (PC/Windows only)


Download the latest updater tool here : Mask1 Updater V3.2


Extract the ZIP file on your computer and follow the instructions in the PDF.

How to update (Mac)


Ensure you're using Chrome or Firefox. Install Java Runtime Environment if you do not already have it on your system.


Download the STM32CubeProgrammer utility, extract the ZIP file and install the software


Download the latest firmware file for the MASK1


Power on your MASK1 and connect it to your computer using a USB cable


Press then wait until this indicator turns green :


Launch STM32CubeProgrammer


On the right side, select USB* for Port then press Connect


On the very left side, press the second icon. Press Browse to select the firmware file (.bin) you downloaded.
Ensure the same boxes are checked as on the picture, then press Start Programming


After a few seconds, a popup shows that the connection was lost. This is normal. You can now disconnect the USB cable and close the program. Your MASK1 is ready to use!

If this procedure did not work and the MASK1 is stuck with a black screen, disconnect and reconnect its power supply, refresh this page and try again.
Never disconnect the power or USB cable during the update. This can brick the device.