how do you update the 320

I am having issues adding my DC 50 collars to my 320 unit, says it cant pickup the collars (either one) was wondering if they were even compatible with the 320. not sure how to update the 320 to see if that fixes it so any info would be appreciated

thank you scooby that worked.

my friend and i both have a 220 and all his dogs are listed on the same compass page (it shows multiple arrows/distance etc. i am unable to find out how to make mine do that. mine only shows one dog at a time and i have to select the side arrow to view the other dogs. any information would be ...

Looking for a couple washburn pups, if anybody knows of anywhere i could find a couple please reply back with contact information. Thank you for your time. (its for a friend of mine)