Well, I happened to fix this by myself, unexpectedly of course. I used Hackintool to inject a supported dev-id and frame buffer. But one issue is there. How to fix the HDMI?
@bss111 bro, if you can explain how to get the HDMI going, you would be a hero! I suspect that my HDMI is connected to the dGPU (MX 250), you have said in an earlier post that it is possible to patch, right?