BIOS passwords are a security feature. Resetting them on a stolen laptop is illegal. Dell will require strict proof of ownership before providing a master password.
: Type the generated code into the password field.
2. Methodology 1: The Official Dell Release Route (Recommended) dell latitude 5520 bios password reset
If the above methods don't work, you can contact Dell support for assistance. To use this method:
: Turn on the laptop and enter a wrong password 3 times until an error code (often labeled as a "System Number" or "Hash Code") appears on the screen. BIOS passwords are a security feature
Look closely at the printed circuit board circuit traces near the RAM slots or CMOS port. Look for two small silver solder pads labeled (Real-Time Clock Reset).
Turn off the laptop and disconnect the AC power adapter. : Type the generated code into the password field
To attempt this:
Provide your Service Tag and the specific suffix displayed on the error screen.
You will see an error stating "Time and Date Not Set." This confirms the BIOS successfully restored to factory defaults, wiping the password. Method 4: EEPROM Bios Chip Reflashing (Advanced)
If successful, the system will immediately enter the BIOS or boot into Windows. Go straight to the BIOS settings (F2) and clear the current password fields. Method 2: Contacting Dell Support