Hacker News Reader

A friend of mine have found a fun way to bypass the bios password of thinkpads. With some trial and errors, you short some pins on bios eeprom at the right time so it will read all 0xff’s. It just happen to be that all 0xff’s means the bios password is not set.

View on HN

You mean like in this very article? ;)

Yeah, exactly like this. He showed me the hexdump of the eeprom for an empty password where the space for the password were 0xff’s.

Had an empty password been any other value, such as 0x00, this trick would not work

Reply on news.ycombinator.com