Niresh Catalina 10.15 Backlight Problem

Hello there! I'm trying to enable backlight of my laptop display. Is there anyone can help me? The SSDT-PNLF/AppleBacklightFixup Copy and Paste method didn't work out for me. I've been using the included config.plist since. Here's my laptop specs

Laptop:- Dell Inspiron 15R 5521 CPU:- Intel Core i5 3337u GPU:- Intel HD Graphics 4000 (did show up in macOS with 1536MB VRAM) + AMD Radeon HD8730M (dedicated - didn't show up in macOS) HDD:- 250GB (macOS installed here) + 500GB

Please teach me one by one. I'm a hackintosh newbie.

Tell me if I need to attach my clover here for more troubleshooting

Thanks to anyone that helped.