High Sierra boots to Black Screen after swapping GTX 760 with RX 570

Hi,

I had a working High Sierra install with an ASUS GTX 760. (I'm not sure if I installed Nvidia Web Drivers)

I recently installed an MSI RX 570 8GB Gaming X because I heard it was natively supported.

However it boots to a back screen after swapping the card. I've tried: 1. Using Lilu + Whatevergreen kexts 2. InjectATI through Clover 3. Deinit through Clover 4. -x Safe mode boot through Clover

You see the Apple logo then it boots to a black screen.

So far nothing works. I boot via legacy boot (my motherboard doesn't support EFI) and I have dual monitors 1x HDMI & 1x DVI.

I've searched around but couldn't find a fix. Has anyone encountered this issue?

When swapping Nvidia for ATI, do you have to remove the web drivers first? (If so how do you do it if you can no longer boot)

I'm not sure how to check if I have the Nvidia Web Drivers installed or how to remove them in single user mode.