Probook 6470b Battery Indicator (1% Need Service) with DSDT Patch

Hi, I am currently using Big Sur on ProBook 6470b. But all guides for 6470b are outdated.

I want to make it as Vanilla as Possible. Everything works except for Tap To Click and Battery.
Big Sur has Sealed File system, so I can't really modify SLE or LE.
(except for making a Mounted Folder and then blessing it all, but it won't let me refresh the kextcache)

WIFI I am using is AR-9285, and it works fine with few kexts installed in OC (I made a guide here)
Sound is VoodooHDA, because AppleALC does not work with any IDT92HD81B1X5 layout id (3, 11, 12, 20, 28) (Microphone and Sound works fine, so I guess I am going to leave a is)

I tried HP Probook Generic Patch from RehabMan Repo, and applied it.
Also I installed ACPIBatteryManager.kext from RehabMan Repo
But after a restart is shows 1% and that I have to service my laptop battery.

Then I start Reading those Notes in the Patch, and it says that I have to use 4530s DSDT Patches for 6x70b laptop.
But all Sources for 4530s are dead. What am I suppose to do about this?