AirDrop is an easy way to transfer files between Macs on a network, but older hardware doesn't support the feature. Thankfully, all you need is a Terminal command to turn it on.
To add AirDrop to older Macs, just enter this into Terminal:
defaults write com.apple.NetworkBrowser BrowseAllInterfaces -bool TRUE; killall Finder
To reverse it, enter:
defaults write com.apple.NetworkBrowser BrowseAllInterfaces -bool FALSE; killall Finder
Now you'll be able to AirDrop between computers no matter how old they are.
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