On Fri, 18 Oct 2013 13:21:44 +0200 san san@plusnet.pl wrote:
Ok, case closed.
Found answer here: http://forum-en.msi.com/index.php?topic=95357.0
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.
yes, very likely.
By the way, is it possible to add bios chip information (type) to support list?
What do you mean exactly? The interface type is noted in the wiki table as well as in the output of flashrom -L. For the chip in question on that nforce2 board i think it would not make any difference anyway if you would modify the bustype field in flashchips.c.
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?
In theory that is possible, but normally the pin is connected to a software-controlled pin (GPIO pin of the southbridge for example), and you are way better off controlling that pin with flashrom (a so-called board enable), than physically modifying a board.