Question about Garmin StreetPilot C330 GPS Receiver

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Product Key I purchaed 2008 Map Update of North America and after doing all of the undating a box came on asking me for Product Kedy. I don't have original box or disk. Bought last Christmas ast Best Buy. Need prpduct Key. My Serial No. on until is 11--10R-022832. Plese help. Manny Hoffman at

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Re: Product Key

I just went to the Garmin website and re-log on to the site and then go the "My Garmin"page and click on Map Update once you verified your information they will send you a new update CD for free.

Posted on Jan 02, 2008

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Re: Product Key

Posted on Apr 11, 2016

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Re: Product Key

I bought maps on cd for my nuvi but now want to use them on my computer through "nroute". Although I can do this, the maps don't unlock and I can only get a limited number of maps. A colleague said that I have to buy a separate product key to use it on another unit. Is this right?

Posted on Jun 17, 2010

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Re: Product Key

When you purchased the unit it should have come with a yellow piece of paper which have the unit ID and registration code. If you did not registered the unit with Garmin, then the only way to upgrade to new maps is to buy a new retail Mapsource CD (do not buy the upgrade) or if you still have the yellow piece of paper go to Garmin website and register the unit. The new Mapsource CD will come with a serial number which you register on Garmin's website along with your unit ID. Once you register the mapsource and your unit id you will receive a new unlock code which will only work for your garmin.

Posted on Jan 02, 2008

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For C330 owners that want to have both Canada and US 2008 map update on their GPS this is what you have to do.

Must have:
1 - Street pilot C330

2 - 512mb SD card
3 - SD card reader of some form (some cameras will suffice)
4 - Garmin 2008 Map Update North America

What to DO:

1 - connect the GPS to the computer
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3 - Install the Lower 48 states, United States
(Reason - the C330 has around 1000mb of memory and the "US 48 states" map uses around 900mb" while Canada uses 400mb...which is why you will need that 512mb SD card later)

4 - Once the GPS is updated with the US map. Browse the Map update disk contents. This can be done with going to "My Computer" right click on your CD/DVD drive and click on "Explore"

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7 - Insert your SD card into your card reader and connect it to your computer. A window should pop up. If not you should see it on your "My Computer"

8 - Once you have navigated your way into the SD card directory. Create a folder on the SD card named "garmin" (no caps)

9 - Go into your newly created "garmin" folder right click and paste the "gmappromU.img" file. (This may take upto 20 to 30 mins)

10 - Once the process is complete, Rename the "gmappromU.img" file to --> "gmapsupp.img" (watch for spelling, no caps at all)

11 - Remove the SD card, Turn off your GPS, Insert SD card into GPS.

12 - Turn on GPS, let it load, and there you have it, the FULL North America Map.

When you are searching a state or province (depending where you are located) it will give you an option which map to use, Canada/Alaska or the lower 48 US states. Select your map and you are set to Go.

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