The "Official" Denon AVR-3808CI Thread - Page 690 - AVS Forum | Home Theater Discussions And Reviews
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post #20671 of 20671 Old 08-20-2017, 08:17 AM
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Denon AVR-3808

I have a Denon AVR-3808 with firmware update issue.
When I power up, after same seconds I see on display :
Please wait… Update retry
and after:
Sub Firm Updating 25min
DSP1 Firm Updating 24 min ...remain forever on display.
I try all that I read on internet:
Power up using Standard and DSP Simulation to reset and after try again to update.

HDMI connections are ok and internet radio is ok.
Browsing internet I found it is possible to update using PC with: “DFW_0019_AVR_AVC3808_(Rev.1.0.12).exe” but I can't find this software on internet.
I have service manual and I verify all voltages on the 1U-3799 DIGITAL P.W.B Unit and there are ok.

I made the diagnose with using STATUS and RETURN:

Main Ver02.04

Sub Ver01.11

DSP1 Ver00.00

DSP2 Ver00.00


GUI PRG : 00007621

GUI DAT : 37750020

Please help with any advice.
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