HOW TO Fix Keyboard Backlight on Mac OS X!
New link to download the older version of HID LED test tool (new version no longer gives 'build' folder): https://developer.apple.com/library/c...
Alternatively, download XCode for free off the Mac App Store and open the 'HID LED test tool.xcodeproj' file in Xcode. Then just hit the 'Build' button at the top left, this will create the executable file you need and you can proceed with the tutorial.
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