Content Description:
This tool
package only for
ASUS EX-B250-V7 and version 2001 bios.
Following
the steps below ,you will create a modified bios file and
learn how to re-flash it back ,then you will get a bios screen
of menu unlocked .
Step1.>(dump bios from your machine)
Run
dump.bat as administrator ,it will read data from the bios
chip and generate a bios dump that
names dump.rom , this bios
dump is exclusive for your machine.
Step2.>(replace modified module into bios dump)
a) Run UEFITool.exe and load dump.rom.
b) Choose File=>Search to open search box
,then go into GUID tab then type 89940
and press OK.
Then you will get a search result on message box.
c) Double click the search result then navigate to
899407D7-99FE-43D8-9A21-79EC328CAC21
,
then extend it ,it now looks like below.
d) Right click
PE32 image section then choose Replace body...
then load 899.bin , then choose
File=>Save Image ,then save
it as mod.rom ,now the modified bios is done.
Step3.>(Disable BIOS Lock)
a)
Copy folder "EFI" to a usb flash stick that was already format
to fat32 then reboot system ,then boot this usb device with uefi
model ,it will enter to GRUB sell environment.
You should now see a screen similar with below.
b)
Type the command below and press enter ,then you would
get some message about address 0x8E5 offset to 0x0 ,this
result is we need.
setup_var Setup 0x8E5 0x0
c)
Exit GRUB shell.(type command reboot then press enter or press
[ctrl]+[alt]+[del])
Step4.>(re-flash the mod bios)
Return to operating system and try to run flash.bat as
administrator to flash modded bios.
(If it meet any message about write protection ,please repeat
step3.)
Done ! and enjoy
it !
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