Hacking the 2009 Garmin GPS Update

Garmin GPS systems are great if you don’t know how to find your way to an address but their maps often get outdated in a few years as new infrastructure is developed in your city. Many find the $80 update somewhat of a pinch in their pockets so here is a solution for those people!

Using this guide you will be able to update your Garmin GPS system to the latest (2009) map data, all you need is a little bit of patience and careful reading.

So let’s get started.

NOTE: The Garmin 2010 Update guide is now up!

What do you need?

Once you have those files, follow the instructions below:

1) Download torrent, unzip the completed download to your desktop, open up the folder.

2) Go to Windows\Msi\ folder in the folder extracted and run CNNANT2009Update_ENU.msi if you want english language.

4) Select a directory to install or just leave it as the default and move on.

5) Once the installer is finished a Mapinstall icon should be on your desktop now. Run it.

6) Get Unit ID from your GPS device. Turn on unit, tap agree to pass agreement.

7) Tap: Settings –> Systems –> About See Unit ID: Write it down.

8.) Run the Key-generator

9) Put in the unit id (the # you got from your gps’s about screen) in the top box

10) Next, in the Select Map Product area of the keygen choose custom mapset and enter 325 when prompted:

11) Now, click Generate at the bottom of the program & copy the Unlock Key generated at the bottom.

Now to install the maps!

12) When you run Mapinstall it will tell you that your maps are locked, click on the unlock maps button

13) Now a new window will appear, click the Add button on the right side. Enter unlock key you copied from the keygen to the top box

14) Add the key and you will be prompt after 30 seconds of scanning for where you want to install the maps.

15) For an SD card, choose the drive. For the GPS, choose the GPS drive letter, mostly this is chosen automatically.

15 a.) If you don’t want to buy an SD card, you’ll have to remove your old maps from the GPS device. Plug in your GPS using the USB cord into your computer, open the device, and find a file named gmapprom in the folder named Garmin which will be the biggest file on your GPS at almost 1GB or somewhere around there. Backup this file to your desktop and save it in case something goes wrong, this file has all your old map data. After backing that file up delete it from the GPS.

16) You should now see a screen with the map of North America. Choose the areas you want on your GPS system, the selected areas will turn pink once clicked.

17) Finally click the Finish button. Now the process of building and transferring the maps will begin and this whole process takes about an hour.

Once done you will have the new 2009 maps on your GPS system.

Enjoy! Leave us a line if you liked this guide ;)

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