2. Updating the unit’s firmware

Update the firmware of the unit.

  1. Turn off the unit.

  2. Unplug the power cable from the AC wall outlet.

  3. Connect the USB flash drive to the UPDATE ONLY jack on the unit.

con update usb 209 en
  1. Plug the power cable into an AC wall outlet.

  1. Touch and hold volume minus (volume -) and power (power) together for at least 3 seconds.

btn update 109209

The firmware update begins. The indicators will glow as shown below while the firmware is being updated.

ind update 109209 en

The indicators will flash as shown below when the firmware update has been successfully completed.

ind update success 109209 en

If indicators flash differently than shown above, or fail to glow or flash at all, see Troubleshooting .


  • Do not unplug the power cable or disconnect the USB flash drive until the following procedures are completed.

  1. Touch power (power) when the firmware update is complete.

  2. Disconnect the USB flash drive.
    The firmware update has been completed.