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Type this master password into your locked screen, then hold the key and press Enter to unlock the system.
April 22, 2026 | Category: IT Support & Hardware Security dell latitude 5520 bios password reset
On modern laptops like the 5520, removing the CMOS battery might only reset the system clock and NVRAM settings, but it is often the first troubleshooting step for clearing basic BIOS hangs. How to Reset, Remove, or Recover BIOS Passwords | Dell US Type this master password into your locked screen,
Dell support will use your Service Tag and suffix to generate a unique master password. A significant number of users and technical experts
A significant number of users and technical experts report that the BIOS password on the Latitude 5520 is not stored in CMOS memory, so physically removing the battery will not clear it. As one forum user explained, "Removing the CMOS battery does not work on any recent laptop... It is an anti-theft mechanism".
Method 1: The Official Dell Master Password Route (Recommended)
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