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How to fix Razer Synapse in Mac OSX 10.0 Yosemite

How to fix Razer Synapse in Mac OSX 10.0 Yosemite

Start Terminal.app and type:

sudo nvram boot-args="kext-dev-mode=1"

Verify that command works by typing:

sudo nvram -p | grep -i boot-args

You should see a line:

boot-args	kext-dev-mode=1

Now reboot. If you plug in your razer stuff after the reboot you should see the following in Console.app:

19/09/14 11:12:05,837 com.apple.kextd[19]: kext-dev-mode allowing invalid signature -67023 0xFFFFFFFFFFFEFA31 for kext "/System/Library/Extensions/RazerHid.kext"
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