[REQUEST] Keyboard mod for InsydeH2O BIOS Lenovo S400T

Hi,

I'm new to this forum and need a mod to change the keyboard behavior.
If I'm posting in the wrong place, please bear with me.
There is a setting in the BIOS, Media Keys.. when:

When Media Keys Enabled:
F1-F12 => media keys (airplane mode, brightness/volume etc) by default
Home => Home
End => End
PgUp => PgUp
PgDn => PgDn

When Media Keys Disabled:
F1-F12 => F1-F12
Home => Pause
End => Break
PgUp => ScrLk
PgDn => Insert

Both options give me big problems in using the machine
What I need is:

[REQUEST] What I need:
F1-F12 => F1-F12
Home => Home
End => End
PgUp => PgUp
PgDn => PgDn

I managed to extract the BIOS using Universal BIOS Backup ToolKit 2.0, it is attached in the ZIP, any help is GREATLY APPRECIATED!! THANK YOU!