Hi again, first of all, thanks for your help.
I used your recommended config.plist and, with PlistEdit, added the Apple Backlight. Also, I removed IntelBacklight.kext and ACPIBacklight.kext, installed AppleBacklightInjector.kext to /L/E and pasted SSDT-PNLF.aml in ACPI/patched.
In ACPI/patched, I removed others files and the system is 100% working (my graphic car, for example, continue correctly identified as Intel HD Graphics 4400 1536 MB).
But, after all this, the brightness bar doesn't apperar in Systempref/Display. I check the kextcache and I observe something odd:
AppleMuxControl.kext - dependency 'com.apple.driver.AppleBacklightExpert' not found.
I researched abouth this and found a topic, where you says to restore the kexts with macOS installer. Can you explain more about it? If I run the installer without erasing my HDD, it just will restore the kexts whitout delete my files? And, for last, that can be the problem?
I would appreciate if you take a look at my files attached below and tell me if see more anything wrong.
Thank you again.