Everything working except touchpad and keyboard! Help!

Hi

I have an HP EliteBook 840 G3. Running Mojave 10.14.4. I used RehabMan's Clover plus these files here.

Everything appears to be working great! Except the keyboard and trackpad. I have to use USB to operate it.

I have followed RehabMans guide for installing VoodooPS2Controller.kext, and I can see it installed in the correct folder on the HDD. But I'm having no joy. I've removed many different versions of the Voodoo kext and tried different ones but none seem to work.

Oddly tho... it does randomly work out of the blue, but I can't put my finger on what gets it to start working. It'll just suddenly be working when I try to use the keyboard, sometimes only the keyboard works, sometimes both. But as soon as I reboot it might not work at all, or it might take an hour to work. When it does work the system settings doesn't show anything in the trackpad settings (it doesn't even say no device, just nothing) and it's very jumpy when using it. Really odd!! Any ideas?

Once I've sorted this I believe everything is fully working.

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Happy to provide any screenshots of settings or files or whatever, just let me know what you need that might help.