: Sites such as pwd4bios and BiosPro claim to provide master passwords based on your Service Tag and the 8FC8 code.
Searching for often leads to shady websites promising a single code that unlocks all Dells. Ignore them. Here’s why: dell 8fc8 bios master password top
Once you have the full hash (which may include 8fc8 inside it), here are the legitimate ways to generate the master password. Report: Dell BIOS Master Password Generation (Service Tag