@Bronxteck I replaced the entire EFI folder, from my past experience you guys asked me to replace the EFI folder. I followed the same.
@Jake Lo I didn't know the ways around replacing the plist file without booting into OS and mounting the EFI. So I reinstalled Big Sur with same old guide and EFI folder (downloaded in August) all over again. Track pad, Bluetooth, Wifi are not working. I'm thinking, can I update to Monterey and try fixing the BT, Wifi & trackpad? Monterey runs well on E5470?
Action plan:
> Update OS.
> Update to latest OC configurator.
> Use the EFI folder you have provided above.
Will it work?