Denon HEOS AVR Service Manual page 62

3. Updating via USB
You can update the firmware by downloading the latest version with USB flash drive.
3.1. Connecting to the USB flash drive
(1) Preparation
• USB flash drive format : Prepare a USB flash drive formatted in FAT16 or FAT32.
• Do not run the USB flash drive through a hub.
• Do not connect a computer to the USB port of this unit using a USB cable.
• Do not use an extension cable when connecting the USB flash drive.
3.2. Downloading and updating firmware
1. Download the firmware for this unit from SDI.
2. Save the firmware file to your PC.
3. Copy the firmware to a USB flash drive.
4. Connect the USB flash drive to the USB port of this unit.
5. Updating starts automatically.
6. The LED of this unit blinks in amber during the firmware upgrade.
Here is an example of the LED indicator display.
The front LED blinks in amber.
7. This unit restarts automatically when an upgrade is completed.
Here is an example of the LED indicator display.
The front LED blinks in Blue.
8. The connection setup has been completed and this unit is now ready to connect to the network.
Here is an example of the LED indicator display.
9. Be sure to write the service region settings again.
See "1. Service region settings update procedures"
--- Cautions on Firmware Update ---
• Do not remove the USB flash drive until updating is completed.
• Do not turn off the power until updating is completed.
Once an update is started, normal operations cannot be performed until it is completed.
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