F10/11/12 Keys Not Working

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Hello. I've just updated my macbook 2010 from 10.6.8 to Yosemite and it was going well until I tried to make the F4 button launch the launchpad. I followed some intructions online about typing "rm ~/Library/Preferences/com.apple.symbolichotkeys.plist" into terminal and restarting, but since doing that the F10/11/12 keys aren't working. Also the ctrl and alt keys are not working either (previously they were allowing me to switch between workspaces/dashboards). The 'fn' key also doesn't do anything.

Please can someone tell me how to fix this and just reset the F-keys to how they were on first install. (I tried going to Sys Pref > Keyboard > Shortcuts > 'restore defaults' but it doesn't do anything). Thanks.

picture attached of what i see when i press the F10/11/12 keys

image.png
 

pigoo3

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pigoo3

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Your Mac's Specs
2017 15" MBP, 16gig ram, 1TB SSD, OS 10.15
Good deal. SMC Reset's can sometimes cure a myriad of things!:)

- Nick
 

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