I am trying to update an old Approach S4 with software.. it starts but stops towards the end of the upload.
I would suggest checking out the Garmin support pages below:
Windows PC: Garmin Express Fails to Install or Update on a Windows Computer
Mac: Garmin Express Fails to Install or Update on a Mac Computer
Further solutions:
Garmin Express Software Fails to Complete the "Downloading Files" Stage or Error Installing Message\
