i got "wrong machine error" when recover my Satellite A105-S4284...i used some tools like DMICFG, DMISCOPE, etc...i decided to upgrade my bios to Phoenix version 5.50...at least i found CHGDMI from other's Toshiba Recovery DVD, i try to use it, but i got message "unable to make DeviceIoControl call Error code=23", but CHGDMI works well in other machine...help me!!! what should i do now? THANX

Call their Customer Service Group at 800-631-3811 - help them help you.