Updating my gps
Updates are not transferable to other Navman products or alternative products.The updates you receive will be updates to the same geographic map data originally included with your Navman product when originally purchased.Note, however, that the 1340 LMT may have a larger file to download, so it may take longer.
PC (running Microsoft Windows 7 or higher, Mac OSX 10.6 and above) and internet connection required.
Full terms and conditions available at / or by contacting Customer Support.
Map downloads require sufficient memory on your device - you may need to use an appropriate micro SD card (not included) to store and access the downloads if your device’s internal memory is not sufficient.
If you've purchased one of Garmin's many GPS units that offer free map updates, you will choose this map updates page, which will prompt you to download and install the Garmin Express map updater utility, if you don't already have it installed.
Follow the instructions to get Garmin Express running on your machine.