Jacky Yong

I have decided to make this a separate post because a lot of people are really blur. I will have to really hold their hands and guide them one step at a time. So here is a post specifically on how to combine two Garmin maps with the extension .img files. There are several reasons why you would want to do that. The majority does that because their Garmin device only support one map. What happens if I were to bring my Garmin with me to travel to other countries? I can’t load two maps in a device, so I combine them. Another reason is to remove a lock on certain maps. This post will talk about how to do them both.

In this example, I am going to combine a map from the iPhone’s app with a map from Malsingmap. These two files should be in *.img format. Put your two img files into one location for easier access. Example C:\.

Fire up GMapTool. Click on “Add Files” and click to select your files. Make sure you have something like this:

In the “Join” tab, key in three very important info:

If you can’t find your output file, the “Output file” is where you should start looking. * duhh … * if you encounter “activation requires internet connection” or whatever shit, please check that you have checked “Remove unlock codes”. And if you can’t find your map in your Garmin device, please fill in a name in your “Mapset name”. For the sake of experiment, I shall name my map “Lollipop”

This section below is for those who wants to upload into their iDevice:

Make sure your “Output file” name is nothing but “gmap3d.img” and only “gmap3d.img”. Using iFunbox again, copy the file back into the same location where you extracted your original file. I would suggest that you delete your original “gmap3d.img” file in your iDevice before you copy this new file over.

Open Garmin in your iDevice. Go to Settings – myMaps. Note that your map is identified with the “Mapset name” that you have specified earlier, in my case, it’s Lollipop. Make sure it is turned on.