quoting:
The difference between SST49LF004A and SST49LF004B is that the 4B
version supports LPC / FWH Flashing, 4A version can not handle this.
I knew SOMETHING about this, but thought it is not my case.
This might be useful information in FAQ.
Also, more complete explanation might be found here:
http://www.rom.by/Art_of_BIOS_flashing
By the way, is it possible to add bios chip information (type) to support list?
And how about 'soldering' write-enable? As in last link i found there is a pad (#23) called "Write Enable". It might be possible to cut off this line from motherboard solder 'programmable voltage', and program bioses on not-enabled mainboards. Is that correct?