[flashrom] Erase failed on different chips using v0.9.1-r790
j0e.b1ex at gmail.com
Mon Jan 18 09:06:00 CET 2010
Hi all, don't really know if it is the right list but I'll give it a shot
(sorry for your inconvenient).
I am doing research on different bios chips envolving rewriting of the flash
chip. As time goes by, I stumbled into the same problem over and over again
(increasing rapidly). At the beginning I thought it might be a Write
Protection error but it seems to me that this error is too common to be a
write protection kinda crap (as far as I know most of the boards nowadays
don't come with write protection enabled by default).
here is a couple of flashrom trys output on different chips:
After finding out the right chipset and flash chip:
"Winbond W49V002FA" (256 KB, FWH) at physical address 0xfffc0000.
I get (about) the same error when trying to write:
ERASE FAILED at 0x00000000! Expected=0xff, Read-0x25, failed byte cout from
on most of the time it fails at 0x000000000
About the same error happend on:
"SST SST49LF003A/B" (384 KB, FWH) at physical address 0xfffa0000
page: 0000 at address: 0x00000000>>>>>>>>>0001 at address:
0x00010000>>>>>>>>>0002 at address: 0x00020000
ERASE FAILED at 0x00020000! Expected=0xff, read=0xdb, failed byte count from
Same goes for this one:
"PMC Pm49FL004" (512 KB, LPC,FWH) at physical address 0xfff80000
ERASE FAILED at 0x00000000! Expected=0xff, Read-0x49, failed byte cout from
Would really like some help,
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