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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.

USB flash drive containing 

the firmware data file

4. Plug the power cable into an AC wall outlet.

5. Touch and hold 

 (volume -) and 

 (power) together for at least 3 seconds.

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

Running display

Flash

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

Flashes

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

Troubleshooting

.

Notice

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

completed.

6. Touch 

 (power) when the firmware update is complete.

7. Disconnect the USB flash drive.

The firmware update has been completed.

2. Updating the unit’s firmware

2

 | YAS-209 / ATS-2090 Update Guide

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