Thread: I need to convert .img files to Garmin Mapsource or Home port readable file. PLEASE HELP

@floridafishing

You already have an IMG-file in the correct format (e.g. Garmin propriety IMG map container format, not a disc image that some believes).
HomePort reads the file from a connected Garmin unit, memory card or a USB-stick. Just copy the file as "[USB mass storage device]:\Garmin\gmapsupp.img".
The same goes for your Garmin GPSMAP 440s, just copy as "[SD card]:\Garmin\gmapsupp.img" and put the SD card in the unit.

Here I have HomePort with a microSDHC card as drive "L:" and the map stored at "L:\Garmin\gmapsupp.img":

I'd like to view on laptop as well, without sd card. works well with sd in homeport
I have copy of bluechart on c: drive, tried to rename it but can't use \ \ :
how do I do it please

What error message are you getting when you try to load from C:/ drive?

Now this is what happens - I am able to open in Homeport and see the map but when I take the card, install in my GPS 440s and power the unit on I get a message stating that the maps are locked. How do I unlock the maps?

Thank you

Originally Posted by floridafishing

Now this is what happens - I am able to open in Homeport and see the map but when I take the card, install in my GPS 440s and power the unit on I get a message stating that the maps are locked. How do I unlock the maps?

Thank you

Look at Garmin soft and tool section sticky thread and search for an unlocker