Gaming Pavilion DV2500 Bios Mod

[al5911]

I hope I'm in the correct section ...
I have Pavilion DV2550ee and the wireless card just went dead. I get an extra wireless card and want to use that
on my DV2550. I had searched on bios mod forum and found a modded bios file for my notebook that is SP41959.exe. I tried it and it works BUT the wireless is not initiated/started on boot up. I have to toggle the hard switch to start the wirless (it is ON/OFF switch, not the Fn + F5 button combination).

I'm seeking for a helps to mod the bios file by myself. I know I have to hex edit the MOD_5100.ROM part but I don't have the knowledge.
Here's the detail of the wireless card ;

STOCK/original -
Intel Pro wireless 3945 ABG Device ID :
PCI\VEN_8086&DEV_4222&SUBSYS_135B103C&REV_02
PCI\VEN_8086&DEV_4222&SUBSYS_135B103C
PCI\VEN_8086&DEV_4222&CC_028000
PCI\VEN_8086&DEV_4222&CC_0280

Replacement -
ATHEROS AR5B91 device ID (N draft wireless card):
PCI\VEN_168C&DEV_002A&SUBSYS_E006105B&REV_01
PCI\VEN_168C&DEV_002A&SUBSYS_E006105B
PCI\VEN_168C&DEV_002A&CC_028000
PCI\VEN_168C&DEV_002A&CC_0280

Any helps would be very appreciated. Thanks.