Friday, 17 June 2016

Cracking BIOS passwords (Dell, HP, Fujitsu, Compaq, Insyde, Phoenix, Sony, Samsung)

Many old BIOSes have a preset but secret backdoor password.

But I happened to stumble across this page today.

It describes how to crack the BIOS password on those systems which print a code if you enter the wrong password too many times. It also offers a range of Windows executables (.exe files) for each model which can translate that code into the original BIOS password!

Fujitsu-Siemens BIOS pwd cracker

From the user comments, it appears to work for many systems (I have not tried it 'for real' myself).

This seems like a useful addition to a Techies toolkit (the exe files need .NET and a Windows OS), especially if the customer has forgotten their BIOS password and you need to change the settings.

There is also a simple 'unlocker' web page here which contains the same code but for all types of system (obviously needs internet access and a browser).

Another useful web page (with unlocker script which doesn't seem to work for me?) is here.