So, I'm a huge noob and want to learn how to mod the InsydeH20 BIOS on the legion 5 2021 15ACH6, to enable the advanced menus, but I cannot find any guides that make any sense or help me in any way, I found this
It has the IDs FormSet (FormID GUIDs to Bios Menu Tabs) with the Flags to switch on / off the visibility into Bios , this is the first byte after the ID Len (00 00 00 00 / 01 00 00 00)
The IDs are organized into a Table at affset 0x2E800 / 2E1C0 , injecting mew ID into it , then they will be visible too.
79 25 62 4C 59 B5 02 46 93 E0 44 73 79 3E A2 00 01 00 00 00 Home 1st in list 3D 18 09 1D A4 66 9D 48 9F CA CA 8E 6F EF F9 71 01 00 00 00 Information 2nd in list 4D 78 00 F5 B5 75 FA 41 B7 D5 D4 13 7D AE ED B8 01 00 00 00 Configuration 3th in list 1A B0 E0 C1 7E 60 75 4B B8 BB 06 31 EC FA AC F2 00 00 00 00 Main 4th in list 9E 76 D4 C6 48 7F 2A 4D 98 E9 87 AD CC F3 5C CC 00 00 00 00 Advanced 5th in list 64 F7 04 52 25 DF A2 48 B3 37 9E C1 22 B8 5E 0D 01 00 00 00 Security 6th in list 73 28 71 A6 5F 92 C6 46 90 B4 A4 0F 86 A0 91 7B 00 00 00 00 Power 7th in list 09 83 06 2D AC 12 AB 45 96 00 91 87 51 3C CD D8 01 00 00 00 Boot 8th in list 59 B9 63 B8 C6 0E 33 40 99 C1 8F D8 9F 04 02 22 00 00 00 00 AMD PBS 9th in list E3 35 45 B0 04 30 46 49 9E B7 14 94 28 98 30 53 00 00 00 00 AMD CBS 10th in list 26 64 93 B6 04 FB 7B 4A AA 51 FD 49 39 7C DC 01 01 00 00 00 Exit 11th in list
31 C6 9A E3 ED 48 5E 44 90 42 55 B3 4F 40 58 43 00 00 00 00 AMD Overclocking is missing
with the important info on what needs to be modified, I just don't know how to use that info, as well as, if possible have someone explain how i would go about getting that info myself. I know I need an Spi Programmer, but want to figure out how i actually mod the bios first before i spend money on it.
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[HELP] Modding legion 5 2021 InsydeH20 hhcn20ww
