Unlock BIOS HP 250 G8 (27J99EA)

[GreeceDrummer]

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excuse my english

Bought this laptop to install macOS Monterey with OpenCore which works. But the BIOS is catastrophically minimized
I need access for:
CFG Lock
DVMT
RAID
UART

can someone unlock the bios completely?

[emimor123]

Hi, other one with this problem. Bios in this laptop is ridiculous, please, anybody who could help us?
F.54 insyde

[ivanmazepa]

UP

250 G8 , i5 tigerlake, possible mod BIOS for installation 1.35v mem?

[vloff]

try this guide to do everything yourself. video with undervolting shows in more detail how and what to do. I managed to modify my bios with the help of guides
1. https://youtu.be/f8xf7hf_XS0
2. https://youtu.be/nfiMx9EjZVk

[ivanmazepa]

try this guide to do everything yourself. video with undervolting shows in more detail how and what to do. I managed to modify my bios with the help of guides
1. https://youtu.be/f8xf7hf_XS0
2. https://youtu.be/nfiMx9EjZVk

This is for existing but hidden options, there is no hint of changing the speed / voltage in the BIOS. But the hub / processor itself must be able to do this.