Here’s a direct, technically accurate answer based how HP’s security works on this specific model.
(advanced, risky)
: Historically, HP Support would provide a custom SMC.bin file based on your UUID to reset passwords. HP officially stopped providing these files around 2019 for security reasons. Physical BIOS Chip Reprogramming (Expert Only) : hp elitebook 840 g6 bios password reset utility work
Let's save you time. The following on the HP EliteBook 840 G6: Here’s a direct, technically accurate answer based how
: For newer models like the G6, the most reliable "last resort" is using a hardware programmer (like the TL866II Plus) to read the BIOS chip, use a utility like RC Unlocker to patch out the password, and flash it back. Physical BIOS Chip Reprogramming (Expert Only) : Let's
This is the closest you will get to a "working utility." It works 100% of the time.