UPDATED SOLUTION TO FIXING THIS: (thank you to Ketsiki for discovering this easier method)
Download the Battle.net-Setup.app from www.battle.net.
Run the Battle.net-Setup.app till it freezes out at 45%. Then close it with the red “X” button.
Go into /User/Shared/Battle.net/bna_2/ and drop the installer you just downloaded into the /bna_2/ folder.
- Press Command+Space (Windows Key + Space on a “gaming keyboards”)
- Type “Terminal” and hit enter
- In terminal type the following command:
/Users/Shared/Battle.net/Setup/bna_2/Battle.net-Setup.app/Contents/MacOS/Battle.net-Setup --cmdver=2
The installer will momentarily hang at 45% then unpack the files.
UPDATE:
Someone in the community made a YouTube video of how this works. Thanks, you’re awesome!
YouTube – /watch?v=ntiwO6VvCVY