Do you currently have (Windows/Linux) on the laptop?
Flash the newly patched .BIN file back onto the chip using the programmer. hp zbook 15 g5 bios password reset 2021
Unlike consumer laptops, the HP ZBook 15 G5 stores its BIOS configuration and administrative passwords in a non-volatile, chip-level security module (often tied to the TPM and a dedicated EEPROM chip). Do you currently have (Windows/Linux) on the laptop
Reassemble the laptop and boot up to configure a new password. Important Safety and Legal Warning hp zbook 15 g5 bios password reset 2021
For the HP ZBook 15 G5 in 2021, the "CMOS battery removal" trick is obsolete. The resolution path is: