No. The 8fc8 alone is insufficient.
Unlocking a Dell system with a Service Tag suffix of -8FC8 is more complex than older models because there is currently no public, free key generator available for this specific security algorithm. dell 8fc8 bios master password top
Several online services specialize in generating master passwords for specific BIOS suffixes like 8FC8. dell 8fc8 bios master password top
Use your company/IT admin