We all know that feeling. You pull an old laptop out of the closet, fire it up, and instead of booting to Windows, you’re greeted by a padlock icon and a request for a System or Administrator BIOS password .
Do you have a Latitude 2120? Let me know in the comments if the jumper method worked for you, or if you found a different trick!
If you are holding a —that adorable, rugged, netbook-style laptop from circa 2011—you might be tempted to just toss it. Don't. These little machines are legendary for battery life and keyboard feel, but they are also notorious for forgetting passwords.
Here is the good news: Resetting the BIOS password on a Latitude 2120 is possible, but it isn't as simple as pulling a CMOS battery. Unlike older Dells (the 5xxx series), the Latitude 2120 generally does not respond to the old "Master Password" generators or service tag codes. Dell moved to a more secure hashing system around this era. You have three actual options: Hardware jumpers, battery pull, or software recovery. Method 1: The Hardware Jumper (Most Reliable) The Latitude 2120 is a business-class machine, which means Dell included a physical "Password Clear" jumper on the motherboard. This is your best bet.