Originally Posted by Pikey Dave
In response to the PM's I've had re. the above link:-
Firstly, I've only installed & used the chart on my Montana 650 handheld which I use as my backup plotter. I've not installed it onto a full fat Garmin plotter as I don't own one, but the process will be along the lines of:-
Download the 8 parts of the UNLOCKED
version of the chart, these are hosted on free hosting sites & you might have to jump through a few hoops to get to the download area, save all the parts into the same directory/folder.
Double click on part 1, you will have to have WinRAR or similar software on your pc to unzip the parts & stitch them together. If successful you will have a thumping big file called gpsmapupp.img or similar. You need to copy this file into the "Garmin" folder on your SD card. If there is already a *.img file already in the folder, either cut & paste it to somewhere safe, or rename it to gpsmappup.img.bak this is your original map file so you don't want to damage it incase it all goes t1tt5 up
Alternatively, you can use a different SD card to play about with, put this into your plotter & format it in the plotter, the plotter will create a "Garmin" folder, just paste the new *.img file into that & give it a try. As I said, it works fine on my handheld, should work ok on a plotter. I believe a certain cocky young fella around these parts has successfully got it working on his shiny new kit...allegedly