FN Brightness keys not working

[josemmc95]

FN + F5/F6 are not working.

My laptop is a F556UJ (X556UJ).

Furthemore, airplane mode does nothing and sleep goes to sleep but it crashes the system. I installed AsusSMCDaemon and it doesn't fix anything.

I've attached my DSDT (I don't know if you need it)

Thank you in advance!
System DSDT.zip

[tvieira20]

Same issue (only Keyboard Brightness not working). ASUS VivoBook S530Fn