Cannot disable SIP completely

I have a laptop (MSI GF63-8RD) and I tried to disable SIP with csrutil disable from Recovery, from my EFI's config.plist, by using csr-active-config, and by using various variables. No matter which one I use, I always receive the output shown below. What can I do to disable Apple Internal?

(I need to replace Icons.plist from the system with the one made by Hackintool)

System Integrity Protection status: unknown (Custom Configuration).

Configuration:

Apple Internal: enabled

Kext Signing: disabled

Filesystem Protections: disabled

Debugging Restrictions: disabled

DTrace Restrictions: disabled

NVRAM Protections: disabled

BaseSystem Verification: disabled

This is an unsupported configuration, likely to break in the future and leave your machine in an unknown state.

submitted by /u/Undergrow007
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