SONY Vaio SVE1712C1EW.G4 - no way to mod ???

[Kassiopaia]

Sorry for my question here, we have problems to mod a Sony Vaio - Notebook.

I'am not sure is it a "unlock - problem" or only the wrong way for build the slic- info, I post also in the other section (slic request / unlock request).

I'am also in correspondence with other helpers, but at present no way to find a mod.

Can anybody help me?
The slic2.1.bios can't flash from Windows and also from DOS mode (say invalid image).

OS is Win7Ultimate64, original was Windows 8 installed.

Into bios is "secure boot" disable, the boot mode is "legacy" (UEFI is disable).

-Manufacturer: SONY
-Model: SONY Vaio (SVE171G11M)
-Product: SVE1712C1EW.G4
-Bios: Insyde Corp.
-Bios revision: R0160D6
-ME version: 8.1.0.1248
-Bios SLIC: 2.1 (for Win 7)
-Cert: SONY
-RWE report + Orginal Bios (*.7z - File): http://www.sendspace.com/file/kxjumw
-Original bios on webside: http://www.sony.de/support/de/produc...000284596_8231

Thanks for read and hope for help.
Sorry for my bad english.