Patched the BRT6 as per your guide but same result, I also tried _Qxx with mine with _Q66 method I have,
into method label _Q66 replace_content
begin
Store(HKNO, Local0)\n
If (LEqual(Local0,7))\n
{\n
// Brightness Down\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0405)\n
}\n
If (LEqual(Local0,8))\n
{\n...