G7 Bios Password Reset ((free)): Hp Elitebook 840

They may provide a specialized file tailored to your specific serial number.

This is the for the EliteBook 840 G7. You physically read and write the BIOS chip (Winbond 25Q series) using an SPI programmer like a CH341A or Raspberry Pi. hp elitebook 840 g7 bios password reset