Solved - AppleHDA not loading in Big Sur

[better]

pop this in terminal:

sudo kextcache -i /

and copy and paste the output here

Finally could succeed with every issue - battery, sound (with voodoohda.kext) & Post Error thanks to your post:https://www.tonymacx86.com/threads/solved-hp-450-g4-error-real-time-clock-power-loss-005.305566/

Attaching EFI.zip for everyone who's interested. @Feartech , thank you once again!