i have flashed mine lots of times.
before install . . .
use parallel port adpater
after install . . .
i can be done from evox menu when the matrix is in mode four and the
correct line exists in the evox.ini file
edit . . .
e.g. line
Flash = 0x01d5,"AMD - Am29F080B",0x100000
Flash = 0x04d5,"FUJITSU - MBM29F080A",0x100000
Flash = 0xadd5,"Hynix - HY29F080",0x100000
Flash = 0x20f1,"ST - M29F080A",0x100000
Flash = 0xbf61,"SST - 49LF020",0x40000 <--- think this is matrix
Flash = 0x015b,"AMD - Am29LV800B",0x100000
Flash = 0x01da,"AMD - Am29LV800B",0x100000