<![CDATA[Bios Mods - The Best BIOS Update and Modification Source - AMI BIOS Unlocking Requests]]> https://www.bios-mods.com/forum/ Sun, 04 Oct 2026 22:42:45 +0000 MyBB <![CDATA[Asrock Z890-C Bios Mod]]> https://www.bios-mods.com/forum/Thread-Asrock-Z890-C-Bios-Mod Thu, 01 Oct 2026 13:51:01 -0400 xul8tr]]> https://www.bios-mods.com/forum/Thread-Asrock-Z890-C-Bios-Mod
I modded the latest bios but I can’t get it to flash, I get “Secure Flash Check Failed”. Anybody know what I have to do in order to get this to work?

https://www.asrock.com/MB/Intel/Z890-C/index.us.asp

https://download.asrock.com/BIOS/1851/Z8...40)ROM.zip]]>
I modded the latest bios but I can’t get it to flash, I get “Secure Flash Check Failed”. Anybody know what I have to do in order to get this to work?

https://www.asrock.com/MB/Intel/Z890-C/index.us.asp

https://download.asrock.com/BIOS/1851/Z8...40)ROM.zip]]> <![CDATA[Could the ASUS P6T Deluxe be given UEFI using Express Gate?]]> https://www.bios-mods.com/forum/Thread-Could-the-ASUS-P6T-Deluxe-be-given-UEFI-using-Express-Gate Sun, 23 Aug 2026 09:29:18 -0400 matthewacbroad]]> https://www.bios-mods.com/forum/Thread-Could-the-ASUS-P6T-Deluxe-be-given-UEFI-using-Express-Gate I've been thinking about an idea for the ASUS P6T Deluxe.
The board uses an older AMI BIOS, not UEFI, but it also has ASUS Express Gate integrated into the BIOS. When Express Gate is enabled, the normal BIOS boot screen can hand control over to Express Gate, which effectively takes over the display and runs its own environment.
So instead of trying to completely replace the P6T's original BIOS, what if we used the Express Gate portion of the firmware as the entry point for a custom UEFI environment?
The basic idea would be:
P6T power-on → original AMI BIOS initializes hardware → Express Gate mechanism launches → custom UEFI environment takes its place → UEFI boot manager → Windows/Linux
The original ASUS BIOS could potentially remain responsible for the board-specific initialization:
  • X58 chipset
  • ICH10R
  • CPU
  • RAM
  • PCIe
  • SATA
  • USB
  • Super I/O
  • etc.
Then the Express Gate environment would essentially be replaced by an EDK II/UEFI-based environment.
The goal wouldn't necessarily be to "convert the entire P6T BIOS into UEFI." It would be more like using something the existing firmware already knows how to launch as a bridge into a modern firmware environment.
Ideally, it could eventually provide things the original P6T never had:
  • UEFI boot
  • GPT boot
  • NVMe boot
  • modern UEFI drivers
  • graphical firmware interface
  • UEFI boot manager
  • potentially Secure Boot
  • modern hardware information
And the original legacy BIOS could potentially remain as a fallback/recovery environment.
Obviously, there are huge technical questions:
How does the P6T's AMI BIOS actually launch Express Gate?
Where exactly is Express Gate stored in the firmware?
How much space does it occupy?
Can that execution path be redirected to a UEFI payload?
Does the BIOS initialize enough hardware beforehand for UEFI to take over?
The P6T Deluxe is especially interesting because its BIOS is only 16 Mb (2 MB), so space would be a major constraint.
I'm wondering whether this is actually technically possible rather than simply assuming an old X58 board can never have UEFI.
The first step would probably be to dump/analyze the final P6T Deluxe BIOS 2209, locate the Express Gate module, understand its loader, and see exactly what ASUS is doing when Express Gate takes over.
Has anyone ever investigated replacing ASUS Express Gate with a custom firmware/UEFI payload on an older AMI BIOS board?

EDIT: Idea two would be Express Gate = Old Linux, edit or inject new linux but just uefi/bootloader/shell style with uefi support that can boot OS's (off sata/pcie)]]> I've been thinking about an idea for the ASUS P6T Deluxe.
The board uses an older AMI BIOS, not UEFI, but it also has ASUS Express Gate integrated into the BIOS. When Express Gate is enabled, the normal BIOS boot screen can hand control over to Express Gate, which effectively takes over the display and runs its own environment.
So instead of trying to completely replace the P6T's original BIOS, what if we used the Express Gate portion of the firmware as the entry point for a custom UEFI environment?
The basic idea would be:
P6T power-on → original AMI BIOS initializes hardware → Express Gate mechanism launches → custom UEFI environment takes its place → UEFI boot manager → Windows/Linux
The original ASUS BIOS could potentially remain responsible for the board-specific initialization:
  • X58 chipset
  • ICH10R
  • CPU
  • RAM
  • PCIe
  • SATA
  • USB
  • Super I/O
  • etc.
Then the Express Gate environment would essentially be replaced by an EDK II/UEFI-based environment.
The goal wouldn't necessarily be to "convert the entire P6T BIOS into UEFI." It would be more like using something the existing firmware already knows how to launch as a bridge into a modern firmware environment.
Ideally, it could eventually provide things the original P6T never had:
  • UEFI boot
  • GPT boot
  • NVMe boot
  • modern UEFI drivers
  • graphical firmware interface
  • UEFI boot manager
  • potentially Secure Boot
  • modern hardware information
And the original legacy BIOS could potentially remain as a fallback/recovery environment.
Obviously, there are huge technical questions:
How does the P6T's AMI BIOS actually launch Express Gate?
Where exactly is Express Gate stored in the firmware?
How much space does it occupy?
Can that execution path be redirected to a UEFI payload?
Does the BIOS initialize enough hardware beforehand for UEFI to take over?
The P6T Deluxe is especially interesting because its BIOS is only 16 Mb (2 MB), so space would be a major constraint.
I'm wondering whether this is actually technically possible rather than simply assuming an old X58 board can never have UEFI.
The first step would probably be to dump/analyze the final P6T Deluxe BIOS 2209, locate the Express Gate module, understand its loader, and see exactly what ASUS is doing when Express Gate takes over.
Has anyone ever investigated replacing ASUS Express Gate with a custom firmware/UEFI payload on an older AMI BIOS board?

EDIT: Idea two would be Express Gate = Old Linux, edit or inject new linux but just uefi/bootloader/shell style with uefi support that can boot OS's (off sata/pcie)]]> <![CDATA[[Request] Samsung Galaxy Book2 Pro (P12RGG, i7-1260P + Arc A350M) Unlock BIOS Rebar]]> https://www.bios-mods.com/forum/Thread-Request-Samsung-Galaxy-Book2-Pro-P12RGG-i7-1260P-Arc-A350M-Unlock-BIOS-Rebar Sat, 01 Aug 2026 14:18:28 -0400 RafaelLVX]]> https://www.bios-mods.com/forum/Thread-Request-Samsung-Galaxy-Book2-Pro-P12RGG-i7-1260P-Arc-A350M-Unlock-BIOS-Rebar
There's no 4G Decoding / ReBAR option in Setup, no Chipset submenu at all - just SysInfo/Advanced/Security/Boot tiles with a handful of toggles each.

What I've checked:
  • PCI resource allocation in Windows: the root port feeding the GPU (Bus 3, Dev 1, Fn 0, "PCI Express Downstream Switch Port", VEN_8086&DEV_4FA4) only gets an ~18MB memory window from firmware. Not enough for even a default-size VRAM BAR. So this is firmware not reserving address space, not a driver/OS issue.
  • Pulled P12RGG.CAP out of the Samsung update package (tavinus/SamsungBIOSTools method). Delivered as a Windows firmware-class driver (WFU_PRGG.inf, FirmwareId {6B55D383-7F30-4605-9BC6-6685A32C0AC5}), labeled "SAMSUNG ELECTRONICS System Firmware".
  • No string for "4G Decoding", "Above 4G", "Resizable BAR", "ReBAR", "MMIO", "Resource Padding" anywhere in the file. ASCII or UTF-16, compressed or not.
  • Only one compression scheme in the whole image: LZMAF86 (GUID EE4E5898-3914-4259-9D6E-DC7BD79403CF), 38 sections. Recursively decompressed all of them, including ones nested two levels deep - 83 blobs, ~62MB decompressed. Still nothing.
  • Searched for strings I can see live on the actual Setup screen right now (Secure Boot Control, Purchased Date, USB Charging, BT Audio Offload). Also not found, anywhere, in any encoding. Tried brute-forcing single-byte XOR and basic add/sub/rotate/reverse against known plaintext too, no hits. So either Samsung's skin pulls its text from somewhere outside this capsule, or it's obfuscated in a way I haven't guessed yet.
  • The "AMITSE" string only shows up inside NVAR entries (AmiTseSetupGuid) - that's stored variable data, not the actual Setup Utility driver/IFR forms.

So text search is a dead end, both for the skin and for the option I actually want. Looking for anyone who recognizes this format/obfuscation, has Alder Lake reference source to cross-reference the SaSetup/PchSetup Above4GDecoding field offset, or can just add the question back via IFR - the underlying variable is probably still there even with the form ripped out.

CAP attached (compressed, otherwise I blow the 20MB quota). Can pull any other section out of it on request.

Thanks for any help! It's the first time I try this so please bear with me.

[Image: qh9.png]

.gz   P12RGG.CAP.gz (Size: 12.39 MB / Downloads: 3) ]]>
There's no 4G Decoding / ReBAR option in Setup, no Chipset submenu at all - just SysInfo/Advanced/Security/Boot tiles with a handful of toggles each.

What I've checked:
  • PCI resource allocation in Windows: the root port feeding the GPU (Bus 3, Dev 1, Fn 0, "PCI Express Downstream Switch Port", VEN_8086&DEV_4FA4) only gets an ~18MB memory window from firmware. Not enough for even a default-size VRAM BAR. So this is firmware not reserving address space, not a driver/OS issue.
  • Pulled P12RGG.CAP out of the Samsung update package (tavinus/SamsungBIOSTools method). Delivered as a Windows firmware-class driver (WFU_PRGG.inf, FirmwareId {6B55D383-7F30-4605-9BC6-6685A32C0AC5}), labeled "SAMSUNG ELECTRONICS System Firmware".
  • No string for "4G Decoding", "Above 4G", "Resizable BAR", "ReBAR", "MMIO", "Resource Padding" anywhere in the file. ASCII or UTF-16, compressed or not.
  • Only one compression scheme in the whole image: LZMAF86 (GUID EE4E5898-3914-4259-9D6E-DC7BD79403CF), 38 sections. Recursively decompressed all of them, including ones nested two levels deep - 83 blobs, ~62MB decompressed. Still nothing.
  • Searched for strings I can see live on the actual Setup screen right now (Secure Boot Control, Purchased Date, USB Charging, BT Audio Offload). Also not found, anywhere, in any encoding. Tried brute-forcing single-byte XOR and basic add/sub/rotate/reverse against known plaintext too, no hits. So either Samsung's skin pulls its text from somewhere outside this capsule, or it's obfuscated in a way I haven't guessed yet.
  • The "AMITSE" string only shows up inside NVAR entries (AmiTseSetupGuid) - that's stored variable data, not the actual Setup Utility driver/IFR forms.

So text search is a dead end, both for the skin and for the option I actually want. Looking for anyone who recognizes this format/obfuscation, has Alder Lake reference source to cross-reference the SaSetup/PchSetup Above4GDecoding field offset, or can just add the question back via IFR - the underlying variable is probably still there even with the form ripped out.

CAP attached (compressed, otherwise I blow the 20MB quota). Can pull any other section out of it on request.

Thanks for any help! It's the first time I try this so please bear with me.

[Image: qh9.png]

.gz   P12RGG.CAP.gz (Size: 12.39 MB / Downloads: 3) ]]> <![CDATA[[REQUEST] Lenovo ThinkCentre Edge 91z UEFI Settings Unlock]]> https://www.bios-mods.com/forum/Thread-REQUEST-Lenovo-ThinkCentre-Edge-91z-UEFI-Settings-Unlock Thu, 30 Jul 2026 04:10:55 -0400 maver3000]]> https://www.bios-mods.com/forum/Thread-REQUEST-Lenovo-ThinkCentre-Edge-91z-UEFI-Settings-Unlock
Can anyone unlock UEFI settings in the original bios?
This is the latest bios update
.zip   9ojt23usa.zip (Size: 1.8 MB / Downloads: 0)

If you'll check Lenovo support website, this update is named as UEFI bios but there is no any UEFI setting.
https://support.lenovo.com/us/en/downloa...e-edge-91z

So if it's possible to unlock somehow those UEFI settings please help me with that.

Thanks in advance]]>
Can anyone unlock UEFI settings in the original bios?
This is the latest bios update
.zip   9ojt23usa.zip (Size: 1.8 MB / Downloads: 0)

If you'll check Lenovo support website, this update is named as UEFI bios but there is no any UEFI setting.
https://support.lenovo.com/us/en/downloa...e-edge-91z

So if it's possible to unlock somehow those UEFI settings please help me with that.

Thanks in advance]]> <![CDATA[[Request] Rog g22ch Bios Unlock (PL1, pl2, iccmax, Fan setuo/tuning)]]> https://www.bios-mods.com/forum/Thread-Request-Rog-g22ch-Bios-Unlock-PL1-pl2-iccmax-Fan-setuo-tuning Wed, 01 Jul 2026 21:21:25 -0400 Echelon36]]> https://www.bios-mods.com/forum/Thread-Request-Rog-g22ch-Bios-Unlock-PL1-pl2-iccmax-Fan-setuo-tuning
.zip   G22CHAS418.zip (Size: 8.07 MB / Downloads: 0) ]]>
.zip   G22CHAS418.zip (Size: 8.07 MB / Downloads: 0) ]]> <![CDATA[[REQUEST] Alienware M15 R7 i7-12700H BIOS 1.40 - Unlock CPU Undervolt]]> https://www.bios-mods.com/forum/Thread-REQUEST-Alienware-M15-R7-i7-12700H-BIOS-1-40-Unlock-CPU-Undervolt Sun, 28 Jun 2026 11:25:03 -0400 Carl Camargos]]> https://www.bios-mods.com/forum/Thread-REQUEST-Alienware-M15-R7-i7-12700H-BIOS-1-40-Unlock-CPU-Undervolt
I'm requesting a BIOS mod for my Alienware M15 R7.

Hardware:
- Model: Alienware M15 R7
- CPU: Intel Core i7-12700H
- GPU: NVIDIA RTX 3070 Ti
- BIOS Version: 1.40
- OS: Windows 11 (64-bit)

Request:
Unlock CPU undervolt via FIVR voltage offset (currently locked by Intel/Dell).

BIOS dump (24MB, extracted via FPT):
[https://drive.google.com/file/d/1LEu9H-p...sp=sharing]

Thank you in advance.]]>
I'm requesting a BIOS mod for my Alienware M15 R7.

Hardware:
- Model: Alienware M15 R7
- CPU: Intel Core i7-12700H
- GPU: NVIDIA RTX 3070 Ti
- BIOS Version: 1.40
- OS: Windows 11 (64-bit)

Request:
Unlock CPU undervolt via FIVR voltage offset (currently locked by Intel/Dell).

BIOS dump (24MB, extracted via FPT):
[https://drive.google.com/file/d/1LEu9H-p...sp=sharing]

Thank you in advance.]]> <![CDATA[[Request] ASUS X99-E WS/USB3.1 PCIe Slot Bifurcation]]> https://www.bios-mods.com/forum/Thread-Request-ASUS-X99-E-WS-USB3-1-PCIe-Slot-Bifurcation Sat, 06 Jun 2026 20:19:57 -0400 Scoopik]]> https://www.bios-mods.com/forum/Thread-Request-ASUS-X99-E-WS-USB3-1-PCIe-Slot-Bifurcation Thank you, it's outdated...]]> Thank you, it's outdated...]]> <![CDATA[[REQUEST] LAPTOP ASUS GL553VD BIOS TPM Update — TPM Attestation Unlock]]> https://www.bios-mods.com/forum/Thread-REQUEST-LAPTOP-ASUS-GL553VD-BIOS-TPM-Update-%E2%80%94-TPM-Attestation-Unlock Sat, 06 Jun 2026 13:15:05 -0400 krimimed]]> https://www.bios-mods.com/forum/Thread-REQUEST-LAPTOP-ASUS-GL553VD-BIOS-TPM-Update-%E2%80%94-TPM-Attestation-Unlock I'm hoping someone here can help me with a BIOS mod for my ASUS GL553VD.
System:

Laptop: ASUS GL553VD
CPU: Intel Core i7-7700HQ (Kaby Lake)
Chipset: Intel HM175
Current BIOS: GL553VD.308 (April 2019 — last official release, EOL forever)
SPI Flash: Winbond W25Q64FV 8MB
ME Firmware: 11.8.93.4323 H (updated from 11.6.0.1136)
PTT Version: 303.12.0.0
OS: Windows 10 22H2


Flash layout (from FPT -i):
DESC  - Base: 0x00000000, Limit: 0x00000FFF
BIOS  - Base: 0x00200000, Limit: 0x007FFFFF (6MB)
CSME  - Base: 0x00001000, Limit: 0x001FFFFF (2MB)
Master Region Access:
CPU/BIOS - Read: 0x00B, Write: 0x00A
ME      - Read: 0x00D, Write: 0x00C (locked to host)

The problem:
PTT firmware version 303.12.0.0 fails remote attestation required by Call of Duty Warzone's anti-cheat (Ricochet/Azure). Intel's EKOP provisioning server no longer issues EK certificates for this PTT version. This affects thousands of users across Kaby Lake and Coffee Lake platforms.
Diagnostic confirmation:
tpmtool getdeviceinformation:
- Ready For Attestation: False
- Is Capable For Attestation: False
- Information Flag: INFORMATION_EK_CERTIFICATE

Get-TpmEndorsementKeyInfo -HashAlgorithm Sha256:
- ManufacturerCertificates: {} (empty)
- EKPub Hash: d46eb08384e98c7d3c17505344d140d2a1d1b73281b1bd8bee60ef6e7f1b0818
- IsEndorsementKeyPairPresent: True
- IsKeyAttestationCapable: ReturnValue 2147942520 (False)

MEInfo:
- EK Revoke State: Revoked
- Re-key needed: True
- PTT: PRESENT/ENABLED
- FW Version: 11.8.93.4323 H
- CurrentState: Normal
- FPF and ME Config Status: Match

What I've already done:

Updated ME firmware from 11.6.0.1136 → 11.8.93.4323 via FWUpdLcl64 -GENERIC 
ME CurrentState: Normal, no longer in Recovery 
PTT PRESENT/ENABLED 
TPM 2.0 confirmed working in tpm.msc 
Secure Boot enabled, Confirm-SecureBootUEFI: True 
BIOS region successfully dumped via FPT: FPTw64.exe -d bios.bin -bios (6MB) 
Analyzed BIOS with UEFITool NE A74 — located setupdata inside double LZMA compressed volume 
Extracted IFR from Setup PE32 — PTT byte found at VarOffset 0x68A in PchSetup (VarStoreId: 0x1) 
Patched setupdata byte 0x68A from 0x00 → 0x01 using HxD 
Reconstructed bios_patched.bin via UEFITool 0.28 Replace body — verified same size (6,291,456 bytes) 
Confirmed patched byte in reconstructed file 
bios_patched.bin NOT yet flashed — ready and waiting 
Attempted TPM provisioning via all Windows methods — all failed due to PTT version floor 
Attempted FWUpdLcl64 -PARTID WCOD — failed (partition not in consumer firmware) 
Attempted Clear-Tpm and Initialize-Tpm — EK cert still missing 

BIOS structure (UEFITool):
UEFI image
├── Padding
├── AmiNvramMainRomGuid
├── AmiNvramMainRomGuid
├── Padding
├── 4F1C52D3-D824-4D2A-A2F0-EC40C23C5916
│  └── 9E21FD93-9C72-4C15-8C4B-E77F1DB2D792
│      └── LzmaCustomDecompressGuid
│          └── Volume image section
│              └── 5C60F367-A505-419A-859E-2A4FF6CA6FE5
│                  ├── Setup (PE32) ← PTT IFR found here
│                  └── setupdata
│                      └── LzmaCustomDecompressGuid
│                          └── setupdata ← PTT byte patched here
├── AFDD39F1-19D7-4501-A730-CE5A27E1154B
├── 14E428FA-1A12-4875-B637-8B3CC87FDF07
└── 61C0F511-A691-4F54-974F-B9A42172CE53

IFR finding:
OneOf Prompt: "TPM Device Selection"
VarStoreId: 0x1 (PchSetup)
VarOffset: 0x68A
Size: 8
Option: "dTPM" Value: 0x00
Option: "PTT"  Value: 0x01 (Default, MfgDefault)
Current value in setupdata: 0x00 → patched to 0x01

What I need:
A complete modded image for GL553VD containing:

Updated PTT partition version above 303.12.x.x — ideally 400.x.x.x or higher (Activision says Intel PTT with versions 303.12.x.x need new firmware update)
Our already-patched setupdata PTT byte (VarOffset 0x68A = 0x01) preserved

Flash method:

BIOS region: flashable via FPTw64.exe -f modded.bin -bios from Windows (write confirmed)
ME region: locked to host write — if ME needs updating, would need full 8MB SPI flash image or FWUpdLcl method


Attached files:

GL553VDAS308.zip — Latest original BIOS file (which i'm running)
bios_patched.bin — setupdata PTT byte already fixed (for enabling TPM in BIOS, but not implemented)
meinfo_for_modder.txt — full MEInfo verbose output
setup.bin.0.0.en-US.uefi.ifr.txt — full IFR extract
FPT_i_output.txt -- output confirming flash chip and region layout


This fix would benefit thousands of affected players.
Thanks in advance!
Mohamed

.zip   GL553VDAS308.zip (Size: 3.54 MB / Downloads: 2)

.bin   bios_patched.bin (Size: 6 MB / Downloads: 3)

.txt   meinfo_for_modder.txt (Size: 9.28 KB / Downloads: 3)

.txt   setup.bin.0.0.en-US.uefi.ifr.txt (Size: 1.3 MB / Downloads: 1)

.txt   FPT_i_output.txt (Size: 962 bytes / Downloads: 2) ]]> I'm hoping someone here can help me with a BIOS mod for my ASUS GL553VD.
System:

Laptop: ASUS GL553VD
CPU: Intel Core i7-7700HQ (Kaby Lake)
Chipset: Intel HM175
Current BIOS: GL553VD.308 (April 2019 — last official release, EOL forever)
SPI Flash: Winbond W25Q64FV 8MB
ME Firmware: 11.8.93.4323 H (updated from 11.6.0.1136)
PTT Version: 303.12.0.0
OS: Windows 10 22H2


Flash layout (from FPT -i):
DESC  - Base: 0x00000000, Limit: 0x00000FFF
BIOS  - Base: 0x00200000, Limit: 0x007FFFFF (6MB)
CSME  - Base: 0x00001000, Limit: 0x001FFFFF (2MB)
Master Region Access:
CPU/BIOS - Read: 0x00B, Write: 0x00A
ME      - Read: 0x00D, Write: 0x00C (locked to host)

The problem:
PTT firmware version 303.12.0.0 fails remote attestation required by Call of Duty Warzone's anti-cheat (Ricochet/Azure). Intel's EKOP provisioning server no longer issues EK certificates for this PTT version. This affects thousands of users across Kaby Lake and Coffee Lake platforms.
Diagnostic confirmation:
tpmtool getdeviceinformation:
- Ready For Attestation: False
- Is Capable For Attestation: False
- Information Flag: INFORMATION_EK_CERTIFICATE

Get-TpmEndorsementKeyInfo -HashAlgorithm Sha256:
- ManufacturerCertificates: {} (empty)
- EKPub Hash: d46eb08384e98c7d3c17505344d140d2a1d1b73281b1bd8bee60ef6e7f1b0818
- IsEndorsementKeyPairPresent: True
- IsKeyAttestationCapable: ReturnValue 2147942520 (False)

MEInfo:
- EK Revoke State: Revoked
- Re-key needed: True
- PTT: PRESENT/ENABLED
- FW Version: 11.8.93.4323 H
- CurrentState: Normal
- FPF and ME Config Status: Match

What I've already done:

Updated ME firmware from 11.6.0.1136 → 11.8.93.4323 via FWUpdLcl64 -GENERIC 
ME CurrentState: Normal, no longer in Recovery 
PTT PRESENT/ENABLED 
TPM 2.0 confirmed working in tpm.msc 
Secure Boot enabled, Confirm-SecureBootUEFI: True 
BIOS region successfully dumped via FPT: FPTw64.exe -d bios.bin -bios (6MB) 
Analyzed BIOS with UEFITool NE A74 — located setupdata inside double LZMA compressed volume 
Extracted IFR from Setup PE32 — PTT byte found at VarOffset 0x68A in PchSetup (VarStoreId: 0x1) 
Patched setupdata byte 0x68A from 0x00 → 0x01 using HxD 
Reconstructed bios_patched.bin via UEFITool 0.28 Replace body — verified same size (6,291,456 bytes) 
Confirmed patched byte in reconstructed file 
bios_patched.bin NOT yet flashed — ready and waiting 
Attempted TPM provisioning via all Windows methods — all failed due to PTT version floor 
Attempted FWUpdLcl64 -PARTID WCOD — failed (partition not in consumer firmware) 
Attempted Clear-Tpm and Initialize-Tpm — EK cert still missing 

BIOS structure (UEFITool):
UEFI image
├── Padding
├── AmiNvramMainRomGuid
├── AmiNvramMainRomGuid
├── Padding
├── 4F1C52D3-D824-4D2A-A2F0-EC40C23C5916
│  └── 9E21FD93-9C72-4C15-8C4B-E77F1DB2D792
│      └── LzmaCustomDecompressGuid
│          └── Volume image section
│              └── 5C60F367-A505-419A-859E-2A4FF6CA6FE5
│                  ├── Setup (PE32) ← PTT IFR found here
│                  └── setupdata
│                      └── LzmaCustomDecompressGuid
│                          └── setupdata ← PTT byte patched here
├── AFDD39F1-19D7-4501-A730-CE5A27E1154B
├── 14E428FA-1A12-4875-B637-8B3CC87FDF07
└── 61C0F511-A691-4F54-974F-B9A42172CE53

IFR finding:
OneOf Prompt: "TPM Device Selection"
VarStoreId: 0x1 (PchSetup)
VarOffset: 0x68A
Size: 8
Option: "dTPM" Value: 0x00
Option: "PTT"  Value: 0x01 (Default, MfgDefault)
Current value in setupdata: 0x00 → patched to 0x01

What I need:
A complete modded image for GL553VD containing:

Updated PTT partition version above 303.12.x.x — ideally 400.x.x.x or higher (Activision says Intel PTT with versions 303.12.x.x need new firmware update)
Our already-patched setupdata PTT byte (VarOffset 0x68A = 0x01) preserved

Flash method:

BIOS region: flashable via FPTw64.exe -f modded.bin -bios from Windows (write confirmed)
ME region: locked to host write — if ME needs updating, would need full 8MB SPI flash image or FWUpdLcl method


Attached files:

GL553VDAS308.zip — Latest original BIOS file (which i'm running)
bios_patched.bin — setupdata PTT byte already fixed (for enabling TPM in BIOS, but not implemented)
meinfo_for_modder.txt — full MEInfo verbose output
setup.bin.0.0.en-US.uefi.ifr.txt — full IFR extract
FPT_i_output.txt -- output confirming flash chip and region layout


This fix would benefit thousands of affected players.
Thanks in advance!
Mohamed

.zip   GL553VDAS308.zip (Size: 3.54 MB / Downloads: 2)

.bin   bios_patched.bin (Size: 6 MB / Downloads: 3)

.txt   meinfo_for_modder.txt (Size: 9.28 KB / Downloads: 3)

.txt   setup.bin.0.0.en-US.uefi.ifr.txt (Size: 1.3 MB / Downloads: 1)

.txt   FPT_i_output.txt (Size: 962 bytes / Downloads: 2) ]]> <![CDATA[[REQUEST] Bios TPM Update Asus GA15DH]]> https://www.bios-mods.com/forum/Thread-REQUEST-Bios-TPM-Update-Asus-GA15DH Fri, 05 Jun 2026 02:18:33 -0400 Lucid245]]> https://www.bios-mods.com/forum/Thread-REQUEST-Bios-TPM-Update-Asus-GA15DH
.txt   biosdumpcpuz.txt (Size: 288.2 KB / Downloads: 4)

.zip   GA15DHAS303.zip (Size: 9.12 MB / Downloads: 3) ]]>
.txt   biosdumpcpuz.txt (Size: 288.2 KB / Downloads: 4)

.zip   GA15DHAS303.zip (Size: 9.12 MB / Downloads: 3) ]]> <![CDATA[Minisforum AI X1 Pro 370 BIOS Unlock]]> https://www.bios-mods.com/forum/Thread-Minisforum-AI-X1-Pro-370-BIOS-Unlock Mon, 01 Jun 2026 05:22:15 -0400 linkhyrule5]]> https://www.bios-mods.com/forum/Thread-Minisforum-AI-X1-Pro-370-BIOS-Unlock afuefix64.efi /capsule, for example, so at least the 'official' route involves a signed ROM. I have essentially zero experience with UEFI fiddling, though, so I'm hoping I'm just ignorant and there's a workaround I couldn't find on my own. Ideally one that doesn't involve physically connecting to the BIOS chip -- in principle I wouldn't mind trying, but I can't even find the BIOS chip, I think it's on the back of the motherboard which would be a serious pain to access...]]> afuefix64.efi /capsule, for example, so at least the 'official' route involves a signed ROM. I have essentially zero experience with UEFI fiddling, though, so I'm hoping I'm just ignorant and there's a workaround I couldn't find on my own. Ideally one that doesn't involve physically connecting to the BIOS chip -- in principle I wouldn't mind trying, but I can't even find the BIOS chip, I think it's on the back of the motherboard which would be a serious pain to access...]]> <![CDATA[Radisys CEQM57 Vbios Edit]]> https://www.bios-mods.com/forum/Thread-Radisys-CEQM57-Vbios-Edit Fri, 29 May 2026 19:19:53 -0400 battery.13v]]> https://www.bios-mods.com/forum/Thread-Radisys-CEQM57-Vbios-Edit
.bin   RadiSys CEQM57 Bios for Cx50.BIN (Size: 4 MB / Downloads: 1) ]]>
.bin   RadiSys CEQM57 Bios for Cx50.BIN (Size: 4 MB / Downloads: 1) ]]> <![CDATA[Fujitsu Celsius R970B Power]]> https://www.bios-mods.com/forum/Thread-Fujitsu-Celsius-R970B-Power Fri, 29 May 2026 14:17:56 -0400 rabbithole]]> https://www.bios-mods.com/forum/Thread-Fujitsu-Celsius-R970B-Power
Anybody knows if there is a way to add ReBAR to this machine?]]>
Anybody knows if there is a way to add ReBAR to this machine?]]> <![CDATA[XMG N.1.61 unlock\ looking for @Klem]]> https://www.bios-mods.com/forum/Thread-XMG-N-1-61-unlock-looking-for-Klem Sat, 23 May 2026 11:23:06 -0400 huliganru]]> https://www.bios-mods.com/forum/Thread-XMG-N-1-61-unlock-looking-for-Klem Can not write PM in techinferno. Seek for Klem.
@Klem если ты здесь, ответь плиз

.zip   GM5ZGxWN161A15.zip (Size: 6.91 MB / Downloads: 1) ]]> Can not write PM in techinferno. Seek for Klem.
@Klem если ты здесь, ответь плиз

.zip   GM5ZGxWN161A15.zip (Size: 6.91 MB / Downloads: 1) ]]> <![CDATA[[REQUEST] Closed]]> https://www.bios-mods.com/forum/Thread-REQUEST-Closed Sat, 23 May 2026 05:47:25 -0400 oksymoronpl]]> https://www.bios-mods.com/forum/Thread-REQUEST-Closed <![CDATA[[Request] HP Erica2 8643 BIOS F.41 - Unlock Above 4G Decoding / Advanced Menu]]> https://www.bios-mods.com/forum/Thread-Request-HP-Erica2-8643-BIOS-F-41-Unlock-Above-4G-Decoding-Advanced-Menu Wed, 20 May 2026 11:13:15 -0400 becca]]> https://www.bios-mods.com/forum/Thread-Request-HP-Erica2-8643-BIOS-F-41-Unlock-Above-4G-Decoding-Advanced-Menu BIOS version: F.41 (09/17/2021) CPU: AMD Ryzen 5 3400G (AM4) Chipset: AMD B550A
What I need:
  • Above 4G Decoding offset
I have setup_var working from Linux and can write EFI variables directly — I just need the VarStore offsets from the IFR. Attaching BIOS file (086F3F41.EXE from SP141980).
Thanks
]]> BIOS version: F.41 (09/17/2021) CPU: AMD Ryzen 5 3400G (AM4) Chipset: AMD B550A
What I need:
  • Above 4G Decoding offset
I have setup_var working from Linux and can write EFI variables directly — I just need the VarStore offsets from the IFR. Attaching BIOS file (086F3F41.EXE from SP141980).
Thanks
]]>