For general troubleshooting of the Grandmother, we recommend the following steps in order:


  1. Reset all GLOBAL SETTINGS 
    • Hold down the HOLD and SYNC buttons for three seconds until you see the SYNC button blinking.
    • Hold the highest black key (A#2), and while holding it press the lowest black key (F#0). You will see the three buttons on the LHC blink rapidly for a moment to confirm that the reset happened.


Video Tutorial: Moog Grandmother | Global Reset


  1. Perform a NOTE CALIBRATION 
    • Hold down the HOLD and SYNC buttons for three seconds until you see the SYNC button blinking.
    • Once blinking, hold the PLAY, HOLD, and TAP buttons, and then press the lowest white key on the keyboard.

Video Tutorial: Moog Grandmother | Note Calibration

  1. Perform a POT CALIBRATION 
    • Send the necessary sysex files to the instrument via USB. You can find the necessary files and further instruction here.


Video Tutorial: Moog Grandmother | Pot Calibration


  1. Update the FIRMWARE to the latest version.

    • You can find files and instructions here.


A guide on how to send SysEx files to your synthesizer can be found here


Video Tutorial: Moog Grandmother | Firmware Update