[Need help] Modding BIOS HP Envy Z170 chipset for Kaby Lake support

Follow the [Guide] How to update microcode of @davidm71 ([GUIDE] AMI INTEL CPU Microcode Update Guide)
First, my motherboard only support for Skylake.
Then I successfully add 2 microcode for kaby lake and coffee lake U0 into this mobo BIOS.
But the mobo still didn’t work with cpu G3930 (kaby lake). The CPU is good.
What I am missing? What prevent it boot?
Could you guy help me.

The original
https://drive.google.com/file/d/1VnRtLbR…iew?usp=sharing
and moded
https://drive.google.com/file/d/189vsE7N…iew?usp=sharing

ps: I pluged debug card and all codes run out, finally it stop ad E0 (normal boot not E0), before the mod, no code run with G3930.

@toanpham.2105

My guide was never meant to be about providing unsupported support to a motherboard but here is a wild guess… Maybe your missing the Kaby Lake GOP driver.

Also your bios is a little bit non standard and need more expert support than what I can provide.

Maybe @Lost_N_BIOS can help you out…

Best of luck…

Hi @Lost_N_BIOS
Could you take a look at my bios?
I used auto moded coffeee lake tool to update gop and vbios. And i flashed this bios and bricked my board. But i recover the bios successfully.
I des