Fujitsu Futro S700 Ami Bios - Change serial number

[djhoom]

Hello,

Since days i'm trying to change the serial number of the Fujitsu Board D3003-B12 in a Futro S700. Tried with Amidedos and Dmiedit and several other tools without success. Apparently, other users have already done it on a D3003-S1 board with Amidedos, But on this board, the serial is not changed even if Amidedos shows a "successful" message.

I have already bricked the bios once, but could recover it with the recovery bios proced ure over usb drive.

Is there an Expert here who can help me out? At least tell me it is not possible so i stop trying

The Bios files are attached