A secondary computer running hex editor/programming software (like NeoProgrammer or AsProgrammer). High-Level Technical Overview:
If you cannot use HP Support and need a hardware-based approach, you must clear the non-volatile memory (NVRAM). Modern HP ZBooks store the BIOS password in an EEPROM chip that does not rely on the CMOS battery, but a full hardware power-drain can sometimes force a reset on specific firmware versions. Steps to follow:
This guide covers the verified methods to regain access to your system safely. Understanding HP Modern Security Architecture hp zbook 15 g5 bios password reset 2021
HP provides a BIOS password reset tool that can be used to reset the password on certain models, including the ZBook 15 G5. To use this method, follow these steps:
Plug the CMOS battery and main battery back in, replace the cover, and power on. Steps to follow: This guide covers the verified
If you or your IT department previously set up , this is the easiest way to regain access.
If you bought the device secondhand or lack proof of ownership, the only definitive local solution requires flashing the physical BIOS chip. This process requires technical skill, specialized tools, and carries a risk of bricking the motherboard. Required Equipment: A separate, working computer. A hardware programmer (e.g., ). If you or your IT department previously set
For the ZBook 15 G5 (released 2018-2019), HP implemented . The laptop does not store a plain-text password. Instead, it stores a hash tied to the TPM 2.0 chip and the Intel Management Engine (ME).
In very early 2020 (and bleeding into early 2021 for unpatched units), security researchers found a flaw in the SMC controller. Technicians used a Linux bootable USB (a tool called smcutil ) to dump and clear the NVRAM region.
: If your fingerprint was registered for BIOS/Power-on security, you may be able to validate your identity and change the password within the BIOS settings. 3. Ineffective Methods for ZBook 15 G5
An (to read the chip without desoldering). Software like NeoProgrammer or Asurada .