[Solved] Extraction of Dell's BIOS Installer named *.EXE

BIOS/UEFI Modding BIOS Modding Guides and Problems
417

Hi,

I’m trying to mod the bios of a Dell XPS m1210 and all I have been able to is to extract the HDR file using /writehdrfile.

PFSExtractor does not seem to work, outputting:

PFS File Header:
Signature: 100015455425224
Version:   79706F43
DataSize:  68676972

pfs_extract: invalid PFS header signature

Whilst BIOSUtilities does not recognize the format:

$ python3 main.py -o output 'MXC62A08.hdr' 

------------
MXC62A08.hdr
------------



Press any key to exit...

The HDR file is 1.114.208 bytes in size whilst a dump from flashrom is exactly 1MB, but it doesn’t look like a proper Phoenix or AMI BIOS either.

Any suggestions? I’m sort of stuck at this point.