Getting to the service menu and these steps are exactly like the D1 pretty much. You will have to have the remote and one of your original discs.

The numbers on the remote work like a 4 way dpad when navigating. The 5 key works as enter in some menus, in some menus the 7 key did the job i think, and in some menus 1 was Back instead of 4 i think. I could be wrong about these but you shouldn't mess anything up pressing the wrong one.

Service Menu

1. Hold eject and reset at same time, release reset button once screen blanks out. Do not release eject button yet.

2. Screen will say "please push reset button". Release the eject button at this point.

3. Take your remote and enter 8 1 8 3 7 2 0 8

Flashing Software.

1. Once the service menu appears push 6 to go to the next page.

2. Use the 8 key to scroll down to "PROGRAM FORCED WRITE", select it with the 5 key.

3. Insert one of your navigation discs.

4. Select "SYSTEM PROGRAM"

5. Select "DVD/CD ROM". I think i used the 7 key to select it on this screen.

6. If it asks to select your language then select your language. i chose English and i think 7 was used again here to select it.

At this point you should see the % go up and eventually it will be done and you can press either the 1 or 4 key to go back to the "PROGRAM FORCED WRITE" screen.

Flashing Software part 2

1. Once back at the "PROGRAM FORCED WRITE" screen. Choose "APPLICATION PROGRAM". Follow the exact same steps we used in the "SYSTEM PROGRAM" area to do the flash here.

Finishing up

1. Once the flashing is done use the back buttons to get back to the original test screen. I honestly dont remember what i pressed to get back to it. It may have been the "clear" button on the remote.

2. Press the 6 key on your remote to go back to the second service menu page.

3. Scroll down to "CLEAR BACK UP MEMORY" (i think its option 5)

4. Select it with the 5 key. It should ask you to reset now. Press reset and you will be back using the old 2007 maps.

If you are doing this to sell your unit and the unit is not in your car you will have do the bypass on your workbench (ground the parking brake wire and move the mute wire) to reset factory defaults or your favorite places will still be in the system. I do not know if this info can be reset from the service menu.

Worked like a charm, thanks Cozmo!

I will add that after doing this yesterday (and thinking it was done)...this morning when going out to leave, it asked for the appropriate disc, and I thought, oh-no. But it downloaded the code and all is well with my real disc again.

P.S. I'm glad I had the remote as well

Thanks Cozmo

My CD-R55 remote arrived today and I followed your instructions to remove the updated CNDV-80MT maps from my Pioneer D-3 worked like a charm.

I found a ebay seller with them for sale for $17 us and the remote arrive in less then 4 days.

I needed to down grade as the new version of the maps provided no voice navigation for my local area, which made the unit pretty much useless in my city unless I wanted to watch the screen constantly which almost go me into trouble a couple of times.

5. Select "DVD/CD ROM". I think i used the 7 key to select it on this screen.

6. If it asks to select your language then select your language. i chose English and i think 7 was used again here to select it.

It didn't ask me to select a language at this point not sure why just went into % loading

Finishing up

1. Once the flashing is done use the back buttons to get back to the original test screen. I honestly dont remember what i pressed to get back to it. It may have been the "clear" button on the remote.

yes the clear button takes you back to the last screen.

Thanks again

Pup..

also worked perfectly for me. hooray

I tried this method and I got through all the steps but when it reboots, it still ask for "insert appropriate disk". Any ideas?

Is this after you did the downgrade and restarted the radio and use the orginal disk? It is not liking the orginal disk? If this is the case did you try upgrade disk and did it like it OK? I think we might need a little more info as to where the step went wrong.

First I tried to upgrade to the 80MT disc but right after the update it shows the "insert appropriate disc".

Then I used the method in this tread to downgrade with my original disc. I downgraded fine but when I rebooted it still saids "insert appropriate disc".

I was looking at the version in the service menu and it shows that next to the GPS software, instead of version it shows "NG" I am assuming it means no good?

Any ideas?

You might read the following thread; it might help.

http://www.avic411.com/forum/viewtopic. ... =downgrade

Thanks for the link, guess I'm screwed and bricked my unit!

Maybe I'm just lucky, but I managed to downgrade without a remote control.

I upgraded the maps then got some problems and decided to change the language to english to explain better here (previously french). The system restarted and asked for appropriate disc... I fed him the old disc and it downgraded like a charm.

My unit resets fine. Comes up with the "release reset button" alert, so I let go of the eject button. Then I type in the code and nothing happens. Screen does not change and continues displaying the "release reset button" message. I can type in the code 15 times and no change. Any help?

This POS is under a year old, but is integrated into a $500 dash kit controlling my HVAC. I'm not about to rip it all out and mail it in. Especially in December.

Make sure you have the switch on the right side of the remote set to AVH. You should hear a beep sound with each number entered for the password.

Positive switch is on the AVH. No beeps are heard when pressing the buttons. Beeps ARE heard if I press one of the buttons on the face of the D3. I'm positive the batteries are fine in the remote. The remote functions fine when not attempting to enter the maintenance menu. Ideas?

This is the remote that I'm using (CD-R55). I noticed that there's two different versions of this remote. I have the black one pictured here:

What remote are you guys using? I thought I saw somewhere another remote that was silver in color. I'm also getting no sound when I hit the buttons but I can switch the source and change the songs on my ipod.

I have the black one. Thought it wasn't working... but I eventually got it.

How did you eventually get it to work?

Well I did get my remote by changing the tab over to DVD not avh. The numbers started working and I got to the service menu only to find out that my GPS softwared is FUBR'D. Oh well, all that down the drain.

Maybe I'm just lucky, but I managed to downgrade without a remote control.

 

I upgraded the maps then got some problems and decided to change the language to english to explain better here (previously french). The system restarted and asked for appropriate disc... I fed him the old disc and it downgraded like a charm.

Dude you are a LIFE SAVER!!! This worked perfect for me. My unit was having trouble reading my burned discs so I needed to downgrade until I could find a better solution. This worked perfect THANKS!!!

Maybe I'm just lucky, but I managed to downgrade without a remote control.

 

I upgraded the maps then got some problems and decided to change the language to english to explain better here (previously french). The system restarted and asked for appropriate disc... I fed him the old disc and it downgraded like a charm.

 

Dude you are a LIFE SAVER!!! This worked perfect for me. My unit was having trouble reading my burned discs so I needed to downgrade until I could find a better solution. This worked perfect THANKS!!!

i thought your burned discs were working fine?

I believe I posted this BEFORE I tried using TDK discs. I originally was using the Verbatim discs which I thought were working fine. But after days of use my D3 started acting up. So I ended up DOWNGRADING my unit back to the stock discs which read just fine. But then later that day I bought some TDK discs and re-burned my 80MT Discs onto those TDK discs. The TDK discs have solved my issues SO FAR but who knows though, only time will tell lol.

i downgraded using the english language option. the upgrade is not worthy my headunit going crazy..... thank you for the instructions on downgrading.

Downgrading via changing language works like a charm. My 09 disks were faulty and I'm back to 08.

After changing to a different language keep hitting the eject button to get the old disc out then insert your correct disc.

I cannot seem to find the reset button on the CD-R55 remote. Can someone please help me. Thank you.

Worked like a champ.

For anyone having, really any, trouble with your D3.... DO THIS DOWNGRADE!

I was previously having trouble searching through the POI database. The D3 would lock up all the time. Then it got a little worse. Then a little worse. Then I couldn't really use the navigation at all, just look at the map. Then the "insert proper disc" message kept popping up and would not show the map even. Did this reset and now EVERYTHING works like new.

I cannot seem to find the reset button on the CD-R55 remote. Can someone please help me. Thank you.

The reset button is on the face of the D3. Right next to the eject button.