Quote Originally Posted by sjackie View Post
I have updated more nuvi's in the past but never a 1340.
Should I update this in the same way as for example a 250?
Depends what you want to update.
If it is system software (firmware) and ancillary files, use WebUpdater or Garmin Express.
It it are maps, then go with the suggestions already made by Neil and catymag.
Don't use MapSource. It's obsolete. Maps from recent years are not fully compatible with it anymore.