Question about Denon AVR-3805 Receiver

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Firmware upgrade failure

When i started a firmware upgrade the display said "downloading 1/14" for about two hours. After that the power was cut and then the receiver does not turn back on, regardless of what I do.

I assume the firmware upgrade had started, even though the display still said "downloading 1/14" (and it still played music). How can I reset it or make it work again?

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Hey spirit110,

where did you get this firmware-upgrade/update file from?

best regards
lars

Posted on Feb 21, 2010

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Try this for the reset
First turn the unit off then
hold down the "Pure Direct" and the "Direct" buttons on the display at the same time. And while you are still holding them down turn the unit on with the power button on the display.
this should reset the microprocessor.

You will need to put all custom settings back in.

Let me know if this helps.

Dave

Posted on Jun 28, 2008

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Posted on Jan 02, 2017

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