Need to completely wipe BIOS?

I have a small problem with a Samsung NC10..

It has had an acer slic installed in the bios at some point in the past, which was fine as bios versions up to 10CA didn't have a slic installed. However, from version 11CA, Samsung have added Windows 7 support via SLIC.

Now the problem is that when updating to 11CA, it causes the PubKey and Marker to mismatch as I think it's using the marker form the new samsung slic, but the acer slic is still there.

Is there any way of completely wiping the bios to start afresh? (It's a Phoenix bios) I've tried flashing 11CA a lot of times, using winphlash, advanced settings, 'Zero block before programming' and also using DOS phlash utility. It's still giving me the same outcome.

Thanks

 

After flashing the new bios, which should have the Samsung SLIC, using SLIC Toolkit, it still reports that the it has the Acer SLIC. Only now, the PubKey and Markers don't match.

The cert, even if changed to Samsung cert and key wouldn't be 100% validated because the PubKey and Marker don't match.

I don't know why this is.. it seems that the Acer SLIC has been flashed to a part of the BIOS which isn't updated by the new BIOS, which means that it's still (partially) showing.

 

Thanks for the reply. Yes, I'm sure that I did use those switches using DOS phlash utility - to Zero block before programming, verify and clear cmos after.

I did the same in the advanced settings of WinPhlash. The problem I think is that the Acer SLIC is written to a part that the new BIOS doesn't write to so the it stays there.

 

Thanks for the help so far. I won't have the chance to do this for a while since I no longer have possession of the laptop. I downgraded to 10CA for the time being (which has technically no SLIC) which then allows the SLIC, pubkey and marker to all match up.

You can find the bios here:

h..p://_www_.samsungpc.com/gb/support/nc10/bios/Win_NC10_11CA07D0.exe