Denon fwcv 0010 manual avr-4306 サービスマニュアル
The Operating Manual for DENON AV Receiver/Amplifier firmware upgrade Page 16 / 16
5. Firmware update retrial procedure
When the firmware update fails, retry the firmware update with the following procedure.
1) Turn off the power switch of the AV Receiver /Amplifier.
2) Confirm <Notes>.
3) Confirm the connection of PC and the AV Receiver/Amplifier (refer to 1.3).
4) Retry the firmware update.
However, retry the firmware update after it recovers in the following cases with the recovery tool.
1) When the POWER switch is turned on, and it doesn't turn on the power of
the AV Receiver /Amplifier.
2) When the POWER switch of the AV Receiver /Amplifier is ON and works normally
but it fails in communications of the Update tool.