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--- Cautions on Firmware Update ---
・
   In order to use these functions, you must have the correct system requirements and settings for a broadband Internet 
connection.
・
  Do not turn off the power until updating is completed.
Even with a broadband connection to the Internet, approximately about 1 hour is required for the updating procedure 
to be completed.
Once updating starts, normal operations on the AVR-3311 cannot be performed until updating is completed. Also, 
setting items of the GUI menu of AVR-3311 or setting items of the image adjustment may be initialized.
Make a note of the settings before updating, and set them again after updating.
3.  About the error code
See the chart below for error codes, details of faults, and coping strategies when rmware updates are performed 
through DPMS (Denon Product Management Server).
Error 
Code
Details of Error code Display Coping strategies
01
Log-in to DPMS has failed.
L o g i n f a i l e d
0 1
Reset and update again.
Carry out the update in an environment that 
has little network load.
02
Line, etc., is busy when logging into 
DPMS.
S e r v e r i s b u s y
0 2
Carry out the update in an environment 
that has little network load.
03
Connection to DPMS failed.
C o n n e c t i o n f a i l
0 3
Check the network connection.
Carry out the update in an environment 
that has little network load.
04
Firmware le data was requested 
but error message was received.
C o n n e c t i o n f a i l
0 4
Check the network connection.
Carry out the update in an environment 
that has little network load.
05
Firmware le data was requested 
but it timed out.
C o n n e c t i o n f a i l
0 5
Check the network connection.
Carry out the update in an environment 
that has little network load.
06
Firmware le data was requested 
but error message was received.
C o n n e c t i o n f a i l
0 6
Check the network connection.
Carry out the update in an environment 
that has little network load.
07
All rmware le data was requested 
but it timed out.
C o n n e c t i o n f a i l
0 7
Check the network connection.
Carry out the update in an environment 
that has little network load.
08
Main CPU rmware le data was 
requested but error message was 
received.
C o n n e c t i o n f a i l
0 8
Check the network connection.
Carry out the update in an environment 
that has little network load.
09
Main CPU rmware le data was 
requested but it timed out.
C o n n e c t i o n f a i l
0 9
Check the network connection.
Carry out the update in an environment 
that has little network load.
0A
Error (NG) message received when 
downloading Main CPU rmware.
D o w n l o a d f a i l
0 A
Check the network connection.
Carry out the update in an environment 
that has little network load.
0B
Error (line congestion) message 
received when downloading Main 
CPU rmware.
D o w n l o a d f a i l
0 B
Check the network connection.
Carry out the update in an environment 
that has little network load.
0C
Error (connection failure) message 
received when downloading Main 
CPU rmware.
D o w n l o a d f a i l
0 C
Check the network connection.
Carry out the update in an environment 
that has little network load.