Using the latest (22.214.171.124) version of Garmin Express, I have been attempting to update the maps. I get the error message “The latest version of these maps have so much new information that we're not going to be able to fit it all on your device's internal memory. Please contact Product Support for help with updating your maps." The file size is 5.63Gb.
Following support advice, I have removed all unused files from the device – the free internal space is now 1.3Gb. On a 7Gb device, it's had to imagine I can clear nearly 6Gb of it.
The device has an empty 32Gb MicroSD card installed. This is recognised by the device, because:
- It’s visible in Windows when I plug in using the USB cable
- Garmin Express lists it in the “Utilities” tab
- I am able to copy a GPX file onto the card, then “import” it into the device using the Trip Planner
However, following support advice, I reformatted the SD card, although it was already formatted. This didn’t solve the problem, but did remove a previously downloaded map update. My device no longer has a map installed at all, making it unusable.
I have tried this process from a second computer, to discount a computer problem causing the problem. Symptoms persist on each computer.
It is possible to update maps if I select "computer only" (i.e. the download process works fine). Obviously, this doesn't update the device.
I see no evidence the device has a hardware fault, but since the only map was removed it is now unusable. It appears Garmin Express doesn’t try and install the map to the SD card, even though there’s insufficient internal memory and a valid SD card.