Twizal said:Thank you for your answer.
I try this before i make my first post.Me and friend of my who is Eletrical engineer or something not sure how to spell it on English , find 2 EEPROM's chip different from the manual on Fastback68.pdf and laptops mainboard is different from showed on this manual chips have other places....
I have Primary password and Hard disk password , but i miss some Config password that i find in security page inside on BIOS ...... to can be able to set admin password and give to admin permision to change settings.....
I have no Floppy or CD-ROM .......can't change even the boot priority .....
DELL LATITUDE 400D
SERVICE TAG : 19SWB1J - 595B
BIOS REVISION : A07
I've removed Bios passwords with official Dell DFU tools for my laptop (D420) and for HDD I've paid 10$ for reformat HDD and that's it. You don't need to buy new HDD but all data from HDD will be lost for that price.