Updated via App Store.
Didn't work right after update due to having rehabman nvme kext without spoof.
Had to boot up using an external drive (running Sierra 10.12.2) and copied the IONVMEFamily.kext from the 10.12.3 nvme drive that was just updated, into the S/L/E of the USB drive, ran the 10.12.3 nvme patch to create hacker 10.12.3 kext. Pasted the new hackerkext into the nvme updated drive S/L/E and removed the (newly created due to update) IONVMEFamily.kext. Then ran kext wizard and repaired permissions in the Nvme drive and rebooted without the usb drive. Booted up fine from nvme 950 pro.
- Had to re do the 36 core mod for my RX480 (Update replaced my 4100.kext and 9500controller.kext)
- Had to run kext utility/kext wizard to fix Bluetooth/Wifi and audio
Edit: internal audio not working. Audio sounds gargled.
Edit: Tried multibeast reinstall of audio - no go
Ran ToledaALCclover - no go