Please Help DV7-4180US no bios post on external screen

[lungkao]

For using marcan's python script and patch VSS you need to work over your bios backup extracted with flashit.exe and then be able to flash it using flashit.exe

I think the flashit.exe utility will not support RSA signed bioses (maybe i'm wrong).

Only the backup extracted from your machine has your VSS table, the PATCH_OFFSET should be F6h and the PATCH_VALUE 09h for CRT-LFP. The VSS_OFFSET and SIZE you should guess looking at your bios backup.

The bios i link below has as default value that 09h i also added the patching python script repaired to work your bios backup file and patch the data you need.

The bios updater will clear your cmos to load default values and make the change active. The script is there for playing pursposes

http://dl.dropbox.com/u/45117524/bios-mo...ungkao.exe

Hi Camiloml
remember I flashed this bios and still no video to VGA during the boot?
I backup the this bios and try to run python script. and I compare the setup.txt file with the first mod "sp50942_NWL_VT_CRT" and here what I find out:

-the first mod: Setup.txt of sp50942_NWL_VT_CRT%2BLFP_POST_By_Camiloml.exe :
'VBIOS Default' = 0x0 Flags 0x0 Key 0x0

-the second mod: Setup.txt of sp50942_lungkao.exe :
'VBIOS Default' = 0x0 Flags 0x1 Key 0x0

what do you think?
I also attch the setup.txt files
thank you