1. Collect a screwdriver, USB cable, and a Windows computer with HQ installed.
  2. Power on the ST-33Q+.
  3. Connect the USB cable to your computer, open HQ, select Updates, select Update Software for Device, select the ST-33Q+, and click update.
  4. Use a screwdriver to remove the plate covering the USB connector.
  5. Connect the USB cable to your ST-33Q+.
  6. Click next to start copying the update.
  7. When the software is copied successfully, click next to continue.
  8. Disconnect the USB cable from your ST-33Q+.
  9. Remove all power sources, including any batteries located in the internal compartments.
  10. Reconnect the power source to the ST-33Q+.
  11. Power on the ST-33Q+.
  12. Connect the USB cable to your ST-33Q+
  13. Check to ensure update was completed successfully.