I have just purchased a Go 520 (shown as Essential on MyDrive) an successfully loaded UK and Iberia maps. I have added a micro SD card which the machine sees as it shows available storage as 31GB. I go to add a map and it shows me all the maps and their size. whichever one I select - and also tell it to save to the SD card - I then get an error message "Oops Something Went Wrong - please try again later". Any idea what the issue is. If not resolved the unit will be going back under warranty!