IBM ThinkPad series

Please also see this homepage for more information regarding removing passwords from IBM ThinkPads. 240 [2609] Short the jumper JP1. 310/310D/310E/310ED [2600] Use switch SW2 near CPU socket (second bit switch counting from the lowest side). ??? [2610], 365C/365CD/365CS/365CSD/365E/365ED [2625] The following procedure disables user and supervisor passwords: 355x [2619], 360x [2620], 370C/750x/755C/755CS [9545] How… Read More: IBM ThinkPad series »

IBM PS/2 Aptiva

This is a short one: For skipping the password check, you have to hold down both mousebuttons after power-on until the first beep. If this doesn’t work, try to press both mousebuttons repeatedly.

DELL Latitude series

These ones are something different. DELL notebooks save their BIOS password in an EEPROM-chip so it isn’t deleted when you short-circuit the BIOS battery or something like that. Also there’s no jumper/DIP-switch which disables the password. Nevertheless, there are three different ways to get such things fixed: I will describe the second one here. Service… Read More: DELL Latitude series »

SONY VAIO

In the newer SONY VAIO Notebooks, the BIOS password is no longer stored in the volatile CMOS-area but on an EEPROM. Jean Delvare has published his results of an analysis of various Sony Vaio EEPROM dumps on his homepage. There you can see that the BIOS password is stored encrypted in the first 7 Bytes… Read More: SONY VAIO »