Alright, RU.EFI time!
After following the instructions from the previous post, you should have everything you need on your flashdrive to change hidden settings via RU.EFI, get one last backup via FPT, and flash the mod via FPT. EDIT: Feel free to rename my ridiculously named "FX506LU_Chipset+Advanced2_modV1.ROM" to "mod.rom" or something simpler that what was.
Using RU.EFI, we are going to disable the "BIOS Lock" and "Flash Protection Range Registers (FPRR)". Before we get started, I will let you know that I have not performed this process before. This process simply changes a setting without flashing a modified BIOS image, so you don't have anything to worry about. I just thought it would be good to let you know.
First, read through this page for an introduction into how RU.EFI works and how to change hidden settings using it:
https://nstarke.github.io/firmware/uefi/...u-efi.html
You may need to search for and disable a setting called "Secure Boot" before you are able to use RU.EFI. First try using RU and if you get an error like "Secure boot violation. Invalid Signature detected. Check Secure Boot Policy in Setup" then you know you need to find and disable Secure Boot in your BIOS Setup Utility.
You can start at the part of the article where it says to type "fs0:". Stop where it talks about "Prerequistes to Enabling DCI". You will want to modify the PchSetup UEFI Variable. You will find this Variable in Config (press Alt+C in RU) and then in UEFI Variables (or something similar). Scroll down to "PchSetup" and press Enter. Go to byte/offset 0x17 and change it from 0x1 to 0x0. This will disable "BIOS Lock". Next in the same UEFI Variable, change offset 0x6DD from 0x1 to 0x0. This will disable "Flash Protection Range Registers (FPRR)".
Let me know how this goes when you get a chance. If you need assistance with RU.EFI, please do not hesitate to ask!
Note to self: "CFG Lock" and "Overclocking Lock" may be easier and less experimental to disable via RU.EFI than a BIOS mod. They are in a "Form" that does not contain a reference in the Setup module. The settings or the "0x2C001 Form: View/Configure CPU Lock Options, Form ID: 0x2749 {01 86 49 27 38 02}" Menu that they are under may need to be injected into another unlocked or visible menu that is referenced.
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