I've had a chance to test MeSet.EXE today, with good results.
Ok so here is what I have just done:
I first put fpt.exe onto a bootable usb drive, and I tried to run the command "fpt -d dump".
I got the standard error message "The host CPU does not have read access to the target flash area. To enable read access for this operation you must modify the descriptor settings to give host access to this region.".
Then I ran MeSet.EXE, the notebook turned off and then back on and started beeping (it was still usable).
So I tried the same command "fpt -d dump". This time it worked. I will attach the dump to this post.DUMP.zip
Now I just have to read back through the thread and see what I can do, it's really good to know that I don't need a hardware mod or a key combo, all I need is MEset.exe.
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Update time.
I have modded my bios image following the guide in the OP, it's attached hereflashnow.zip.
Then I restarted my notebook, ran meset.exe in dos, restarted again, ran the following command in dos "fpt -me -f flashnow.bin".
I took a photo of the result.
But I have no change in intel XTU, no bclk overclock, nothing new at all.