Loading Software to MASSO-G2

Regular updates are released to add more features to the units.

The software upgrade process can be easily performed on-site by following the instructions below:

Each software version is complete and and does not require previous software versions to be installed.

This process is the same whether you are installing a new MASSO or updating software.

Always make a backup of your settingsBack up your current setting on MASSO and take screen prints to allow easy checking of settings after the update is complete.



INFORMATION: The latest software updates are available from your my Workshop portal.


Information: Avoid using unbranded USB Flash drives as these are known to give issues with software install and upgrades



WARNING: Check that while copying file to your flash drive ensure the file name is not renamed.


The example below is for controller with serial number 5A-660


  • Ensure you are using the right software install instructions for you controller. These are for MASSO G2
  • Check that the file name matches the serial number of the controller.
  • Back up your current setting on MASSO and take screen prints to allow easy checking of settings after the update is complete.
  • Connect a USB flash drive to your PC/MAC and make sure it's been formatted in FAT or FAT32 format.
  • Ensure that your flash drive is using MBR as GPT is not supported.
  • Extract the files from the Zip file downloaded from MY WORKSHOP "00000660.HTG" and Data1.HTG files and copy them to the root directory of your USB flash drive.
  • Plug the Flash drive into the port labeled with a picture of a Flash Drive
  • NOTE: Make sure that there is nothing connected on the PlayStation connector on the MASSO
  • Insert the USB flash drive into the controller's USB flash drive connector and DO NOT connect a USB hub.
  • Power up the controller and a progress bar will be displayed on the screen showing the upgrade status.
  • Once the progress bar shows 100%, the upgrade process is finished, please power cycle the unit.
  • Do not remove the flash drive from MASSO as the Data1.htg file is loaded after the first power cycle.
  • Check your settings using the screen prints to make sure nothing has changed.