To update the TDX/TDH800, follow this guide.

  1. Download the SW4.x software from this site: Software
  2. Unzip/Extract the software.
  3. Login to the TDX.
  4. Click 'Admin' -> 'System Maintenance'.
  5. Right next to 'Firmware version in use', click 'Change...'
  6. Click 'Upload file' and select the software ('.ck' file).
  7. Mark/Select the software and click 'Set active'.
  8. Select 'Replace all' and click 'Start update'.
  9. Click 'OK', when the update is done.
  10. Press 'Restart' -> 'Yes'.
  11. Log in and verify the update. Click 'Main unit' and look under 'Software versions'.


Be Advised:
When updating from 3.x to 4.x the failsafe engine is also updated. The failsafe engine is updated by the SW during the update boot process. The system will appear to be crashed/unresponsive during this process (up to 10 min). Please be patient and wait for the system to finish the update. If you interrupt this, the update function starts over when power up again. This process will continue until the failsafe engine is updated.

This video is showing how to upgrade the software on a TDX, from SW3.x to SW4.x.

Download the software from our website.