How to flash modded Insyde BIOS?

[Falseclock]

I decompiled bios by myself, patched and packed again.

Now I have troubles with flashing it.

Tried to put on empty usb stick and flash with Win+B - nothing!

Tried to flash by original InsydeFlash - signature error

Tried to flash by InsydeFlash with patched dll - IHISI: EC read information error in SMI! Error: Boot block cannot support downgrade. The system BIOS will not be updated.

Can some body point me out how to do that?

Code:

--- Log started: 2013/04/29 19:20:54
Initializing...
Log file       : E:\sp57274-patched\InsydeFlash.Log
Settings file  : E:\sp57274-patched\platform.ini (found)
Executable     : E:\sp57274-patched\InsydeFlash.exe
    Version    : 4.1.6.1    Build      : InsydeFlash
    Date       : Mon Apr 29 23:23:21 2013

Resource file  : E:\sp57274-patched\iscflash.dll (loaded)
App name       : InsydesFlash
OS Information : Microsoft Windows 7 Service Pack 1 - supported

Preparation stage

IHISI Version: 198
Offset: 7380688
Device Name:\Device\HarddiskVolume1
SearchVolumeFileAndCreateDirectory
Device Name:\Device\HarddiskVolume5
SearchVolumeFileAndCreateDirectory
Device Name:\Device\HarddiskVolume2
SearchVolumeFileAndCreateDirectory
Device Name:\Device\CdRom0
Allow Version: 000, Dex: 0
Current Version: F.07, Dex: 3847
Current BIOS version is bigger than the version setted in Ini.
Partition : 0 WMI 0x0D: 0
Check Package: 1
BIOS sign: 1
File sign: 0
    Processing parameters...
        Image file     : E:\sp57274-patched\01818.bin
        Backup file    : No Backup file
          OEM ID       : 0x103C
    Loading new BIOS image file...
        Opening file E:\sp57274-patched\01818.bin
Not sign file
Reading 8388608  bytes from file starting at      0 ...
        BIOS image size : 8388608 (0x00800000)
SmiOem1Infor.dwBootBlockInfo: D
Boot Block Sign Check: 1
Boot Block Function Status: 4
Ec Lock Status: 8
BBL level: 2
Current BID : 0008FFB0, New BID : 0008FFB0 BIOS size: 00800000
Ec start address: 00000000,Ec end address: 00000000,Current Size: 00000000, New Size: 00020000
    Error code : 4(0x00000004)
Cleanup Stage
    Stage Completed
--- Log Stopped: 2013/04/29 19:21:25

[TheWiz]

Hi Falseclock,

What did you use to do the de-compile/re-compile?

Regards,
TheWiz

[Falseclock]

Hi Falseclock,

What did you use to do the de-compile/re-compile?

Regards,
TheWiz

Hi TheWiz,

1. Opened with Phoenix tool
2. With IDA found where Advanced menu is hidden
3. With HEX editor patched that place (changed byte from 0 to 1)
4. Recompiled with Phoenix tool
5. Got two new bios file, BIN and DEC

To be sure my patch exist de-compiled patched bios file and checked. Yes, my patch is there.

now wont to flash it.