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It is possible that problem may have been created because of the
way Map subscriptions work. I'll verify but my latest theory is that
you may have to unlock every update not just the map set. I have 4
Garmin GPS units, all 4 units use the same map sets (City Navigator -
North America), and I have 4 City Navigator Unlock Codes. Plus I have 2
City Navigator Map Subscriptions that provide quarterly updates.
Keeping track of Update Codes is a PIA.It is possible that each quarterly update also needs to go
through the Unlock process. Apparently MapInstall doesn't do that
automatically. Here are Garmin Instructions on How to unlock Garmin maps. If I am reading correctly, You have to manually add the update code to MapInstall every time you get a Quarterly Update.
This could have been done in a much more User Friendly Way!!!
It is more than a little disheartening to call Garmin Tech Support
because the standard greeting seems to be "your expected wait will be
over 30 minutes". That would send me to web site but I had already been
there and saw no information to help with the "Maps Can't Unlock"
error that was driving me crazy
The Garmin GPS are among the easiest to use and they have the most complete mapping on the market. To update the mapping, there are several versions of the software integrated into these road gps. To name a few, city navigator version 8 and City Navigator 2008. With a newer version, you have the most recently built streets, new shops, new parking lots, etc.. To update, there are several ways to proceed. First, before you update your maps, I recommend you check if there is a newer version of the maps, visit garmin and download the plugin. You can also view the maps version directly on your gps.
I'm quite sure you need to purchase the 2009 City Navigator SD card to update the maps. That what I did last year to get the 2008 City Navigator maps. You will need to leave the SD card in the unit to use the new maps though..
I haven't been able to determine whether it's possible to update the actual install map on the device. I'm guessing it's possible but would require a computer and an map update to write directly to the device. If I find steps to update the installed maps, I will post them here.
You can get City Navigator 2008 CD from your local Garmin dealer. Cost around $100. It updates via MapSource program and USB connection to IQue 3600. Do not get "NT" maps as 3600 does not understand "NT" compression
Did you try to upgrade your Garmin with 2008 maps? If you have the map registration code then you will have to go to garmin's website and get an unlock code. You will need the registration code and also the unit serial number before you can get a new unlock code. The unlock code is base upon your unit serial number and will only work with that unit.
Garmin normally replace your unit with a refurbished unit. Yes call Garmin and ask for a new unlock code. Normally they provide a new registration ID (yellow piece of paper with the unlock code for the latest mapsource map and accessories which it also included with the refurbished unit.
Turn on the Garmin. Look for the little wrench on the screen and select it. Now look for Map, select Map. Now look for "Map Info", select Map Info. Verify that there is a check mark next to City Navigator North America NT
You will have to buy a regular copy of Mapsource NT (do not buy the update version). The regular copy will come with a serial number and then you will have to register with www.garmin.com to get the unlock code. Also you will need the unit serial number on your i3, (it can be found by removing the battery cover).