[flashrom] Failed ERASE Operation

[hc at comp.susu.ac.ru]

Hello!
I've tried to reflash my Gigabyte GA-6IEM with BIOS version F7 and got 
this output:
"""
Lock status for 0x000000 (size 0x004000) is 00, full access
Lock status for 0x004000 (size 0x004000) is 00, full access
Lock status for 0x008000 (size 0x004000) is 00, full access
Lock status for 0x00c000 (size 0x004000) is 00, full access
Lock status for 0x010000 (size 0x004000) is 00, full access
Lock status for 0x014000 (size 0x004000) is 00, full access
Lock status for 0x018000 (size 0x004000) is 00, full access
Lock status for 0x01c000 (size 0x004000) is 00, full access
Lock status for 0x020000 (size 0x004000) is 00, full access
Lock status for 0x024000 (size 0x004000) is 00, full access
Lock status for 0x028000 (size 0x004000) is 00, full access
Lock status for 0x02c000 (size 0x004000) is 00, full access
Lock status for 0x030000 (size 0x004000) is 00, full access
Lock status for 0x034000 (size 0x004000) is 00, full access
Lock status for 0x038000 (size 0x004000) is 00, full access
Lock status for 0x03c000 (size 0x004000) is 00, full access
Flash image seems to be a legacy BIOS. Disabling checks.
Writing flash chip... Erasing flash chip... Looking at blockwise erase 
function 0... trying... 0x000000-0x000fff, ERASE FAILED at 0x00000000! 
Expected=0xff, Read=0x25, failed byte count from 0x00000000-0x00000fff: 
0xff4
ERASE FAILED!

Looking at blockwise erase function 1... trying... 0x000000-0x003fff, 
ERASE FAILED at 0x00000000! Expected=0xff, Read=0x25, failed byte count 
from 0x00000000-0x00003fff: 0x3fb3
ERASE FAILED!

Looking at blockwise erase function 2... eraseblock layout is known, 
but no matching block erase function found. Looking for another erase 
function.
Looking at blockwise erase function 3... not defined. Looking for 
another erase function.
Looking at blockwise erase function 4... not defined. Looking for 
another erase function.
FAILED!
ERASE FAILED!
FAILED!
Your flash chip is in an unknown state.
Get help on IRC at irc.freenode.net (channel #flashrom) or
mail flashrom at flashrom.org!
"""

flashrom says this:
"""
[root at rr-is ~]# flashrom
flashrom v0.9.2-r1001 on Linux 2.6.18-194.11.1.el5 (i686), built with 
libpci 2.2.3, GCC 4.1.2 20080704 (Red Hat 4.1.2-48)
flashrom is free software, get the source code at 
http://www.flashrom.org

No coreboot table found.
Found ITE Super I/O, id 8712
Found chipset "Intel ICH2", enabling flash write... OK.
This chipset supports the following protocols: Non-SPI.
Calibrating delay loop... OK.
Found chip "SST SST49LF002A/B" (256 KB, FWH) at physical address 
0xfffc0000.
"""

What must I do now?
Thanks

--
Khankin Konstantin
South Ural State University
hc at comp.susu.ac.ru