I tried your instructions and the firmware installed to 4.60. I then put the 2012.40 maps on the card and put the card back into the bike. I rec'd a msg stating that it couldn't unlock the maps. Any ideas?Convert Garmin GPS from NON-NT files to NT files (may work with other Garmin GPS units???)
This file updates the Honda Goldwing 2006-2008 Navi GPS firmware to be able to use the new GARMIN NT. MAPS along with NON-NT MAPS. The new version is 4.60 and only works on Honda Goldwing model years 2006-2008 motorcycles made in the USA and use a 2MB Compact Flash Card (CF card). A new 2MB CF card will work or a 4MB CF card will also work but is not needed. I used a 4MB card do to not finding a 2MB card at the store.
Step 1. Remove your old card from the GPS unit in the Goldwing trunk (see your manual for instructions) and keep it for a backup.
Step 2. Copy the file gupdate.gcd to your new CF card BY ITSELF in a folder called GARMIN. That's the only file that should be on the card...just a folder and a file. It doesn't matter what the card itself is named. Rename file 4.60gupdate.gcd to only gupdate.gcd
Step 3. BEFORE you put the card back in the GPS, power up the bike (accessory is fine) and don't press the ENTER button when prompted by the GPS. NOW go around to the trunk and stick the CF card in. Now then...be patient. When you put the card in, the GPS will set there for a little while with just the default Navigation logo screen. It looks like it's not doing anything, but be patient...don't turn the key off. It will eventually read the card and pull the update file into the GPS unit. A small black box at the bottom of the screen will eventually load and show you what's going on. When it's done, the GPS will reboot itself. You can check and make sure that the version number under System Info is now 4.60 Turn bike off.
Step 4. Now go take your new CF card back to your PC and add the latest NT. MAP FILES on to the CF card. Put the new CF card with the maps back in the GPS and you should be good to go with your new NT. maps. Version 4.60 also works with your old Garmin non-NT maps.
Note: Garmin did something so you can't search for POIs. The keyboard screen is grayed out (non-functional). You can look at the POIs by distance closet first, this function is working. Everything with the GPS is working just fine. Hasn't rebooted so far.
Enjoy and ride safe.