Bios Mods -The Best BIOS Update and Modification Source - [Request] Lenovo Ideacentre 720-18ASU BIOS Unlock

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I am looking for someone to unlock the BIOS mainly so I can edit the DRAM frequency in this BIOS.

I previously did some digging inside the BIOS, and come across these lines, but I lack to skills to modify it:

Code:
One Of: Memory Clock Speed, VarStoreInfo (VarOffset/VarName): 0x7C, VarStore: 0x5000, QuestionId: 0x3D, Size: 1, Min: 0x4, Max 0xFF, Step: 0x0 {05 91 BA 00 BB 00 3D 00 00 50 7C 00 10 10 04 FF 00}

0xA411                 One Of Option: 667MHz, Value (8 bit): 0x14 {09 07 BC 00 00 00 14}

0xA418                 One Of Option: 800MHz, Value (8 bit): 0x18 {09 07 BD 00 00 00 18}

0xA41F                 One Of Option: 933MHz, Value (8 bit): 0x1C {09 07 BE 00 00 00 1C}

0xA426                 One Of Option: 1067MHz, Value (8 bit): 0x20 {09 07 BF 00 00 00 20}

0xA42D                 One Of Option: 1200MHz, Value (8 bit): 0x24 {09 07 C0 00 00 00 24}

0xA434                 One Of Option: Auto, Value (8 bit): 0xFF (default) {09 07 14 00 10 00 FF}

0xA43B                 One Of Option: 1333MHz, Value (8 bit): 0x28 {09 07 C1 00 00 00 28}

0xA442                 One Of Option: 1467MHz, Value (8 bit): 0x2C {09 07 C2 00 00 00 2C}

0xA449                 One Of Option: 1600MHz, Value (8 bit): 0x30 {09 07 C3 00 00 00 30}

0xA450                 One Of Option: 333MHz, Value (8 bit): 0x4 {09 07 C4 00 00 00 04}

0xA457                 One Of Option: 400MHz, Value (8 bit): 0x6 {09 07 C5 00 00 00 06}

0xA45E                 One Of Option: 533MHz, Value (8 bit): 0xA {09 07 C6 00 00 00 0A}

0xA465                 One Of Option: 1050MHz, Value (8 bit): 0x19 {09 07 C7 00 00 00 19}

0xA46C                 One Of Option: 1066MHz, Value (8 bit): 0x1A {09 07 C8 00 00 00 1A}

0xA473             End One Of {29 02}

BIOS Dump: https://drive.google.com/file/d/1vAxeFZD...sp=sharing

Hi~~guy
Try my mod here.
http://www.4file.net/s9qffxr0vqb6/Ideace...0.rar.html

(05-03-2019, 01:42 AM)genius239 Wrote: [ -> ]Hi~~guy
Try my mod here.
http://www.4file.net/s9qffxr0vqb6/Ideace...0.rar.html

I get these error message when I attempt to flash it:

-Error Message: BIOS ROM file is older than BIOS ROM image or project ID unmatch
81 - Error: ROM ID mismatch.

What tool do you use to update bios??

I tried using AFUDOS and AFUWIN; they both gave the same errors.

(05-04-2019, 09:44 AM)pereos Wrote: [ -> ]I tried using AFUDOS and AFUWIN; they both gave the same errors.

Can you sure the dump bios was from afudos or afuwin??
If yes ,you can try afudos version that contain hidden parameter gan ,try to flashing

Command line like: https://www.youtube.com/watch?v=Hk74-2xA7tI

(05-04-2019, 11:32 AM)genius239 Wrote: [ -> ]
(05-04-2019, 09:44 AM)pereos Wrote: [ -> ]I tried using AFUDOS and AFUWIN; they both gave the same errors.

Can you sure the dump bios was from afudos or afuwin??
If yes ,you can try afudos version that contain hidden parameter gan ,try to flashing

Command line like: https://www.youtube.com/watch?v=Hk74-2xA7tI

I get this error now:

Code:
+---------------------------------------------------------------------------+

|                 AMI Firmware Update Utility  v5.09.02.1384.07.B608.LV     |

|      Copyright (C)2017 American Megatrends Inc. All Rights Reserved.      |

+---------------------------------------------------------------------------+

 Reading flash ............... done

 - Check RomLayout ......... Ok.

 Secure Flash enabled, recalculate ROM size with signature... Enable.

 Loading capsule to secure memory buffer ... done

18 - Error: Secure Flash Rom Verify fail.

(05-04-2019, 12:18 PM)pereos Wrote: [ -> ]
(05-04-2019, 11:32 AM)genius239 Wrote: [ -> ]
(05-04-2019, 09:44 AM)pereos Wrote: [ -> ]I tried using AFUDOS and AFUWIN; they both gave the same errors.

Can you sure the dump bios was from afudos or afuwin??
If yes ,you can try afudos version that contain hidden parameter gan ,try to flashing

Command line like: https://www.youtube.com/watch?v=Hk74-2xA7tI

I get this error now:

Code:
+---------------------------------------------------------------------------+ | AMI Firmware Update Utility v5.09.02.1384.07.B608.LV | | Copyright (C)2017 American Megatrends Inc. All Rights Reserved. | +---------------------------------------------------------------------------+ Reading flash ............... done - Check RomLayout ......... Ok. Secure Flash enabled, recalculate ROM size with signature... Enable. Loading capsule to secure memory buffer ... done 18 - Error: Secure Flash Rom Verify fail.

Are you sure this version contain gan parameter??
===========
If /gan can't re-flash also ,hardware spi programer is only way.

Here is what I have tried so far. AFUWIN.exe supplied by the Lenovo BIOS update utility seems work better than other versions of the program.

Flashing with Lenovo update utility commands:

Code:
B:\SWTOOLS\FLASH\O38JY31USA>afuwin.exe IMAGEO38.rom /p /n /r /sp /b /defans /capsule

+---------------------------------------------------------------------------+

|                 AMI Firmware Update Utility  v5.09.02.1384.07.B608.LV     |

|      Copyright (C)2017 American Megatrends Inc. All Rights Reserved.      |

+---------------------------------------------------------------------------+

 Reading flash ............... done

 - FFS checksums ......... ok

 - Error Message: BIOS ROM file is older than BIOS ROM image or project ID unmatch

Flashing with /GAN:

Code:
B:\SWTOOLS\FLASH\O38JY31USA>afuwin.exe IMAGEO38.rom /gan

+---------------------------------------------------------------------------+

|                 AMI Firmware Update Utility  v5.09.02.1384.07.B608.LV     |

|      Copyright (C)2017 American Megatrends Inc. All Rights Reserved.      |

+---------------------------------------------------------------------------+

 Reading flash ............... done

 - Check RomLayout ......... Ok.

 Secure Flash enabled, recalculate ROM size with signature... Enable.

 Loading capsule to secure memory buffer ... done

18 - Error: Secure Flash Rom Verify fail.

Flashing without any parameters:

Code:
B:\SWTOOLS\FLASH\O38JY31USA>afuwin.exe IMAGEO38.rom

+---------------------------------------------------------------------------+

|                 AMI Firmware Update Utility  v5.09.02.1384.07.B608.LV     |

|      Copyright (C)2017 American Megatrends Inc. All Rights Reserved.      |

+---------------------------------------------------------------------------+

 Reading flash ............... done

 Secure Flash enabled, recalculate ROM size with signature... Enable.

 - FFS checksums ......... ok

 - Error Message: BIOS ROM file is older than BIOS ROM image or project ID unmatch

Is my only option getting a hardware spi programmer?

Hi~~
I have some idea.
IMAGEO38.rom = original bios , and rename mod one to mod.rom.

1. Try /P /B /N /K /X /CLRCFG parameter to flash original bios file.
2. Then use low version(3.xx) afudos /gan to flash mod bios right now.

This method need flash two times.
First is flash original bios ,second is flash modified one.

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