Disclaimer: The author is not responsible for any damage or data loss resulting from these procedures. Always back up your data and ensure you have legal ownership of the device before attempting a BIOS password reset.

Purchasing a replacement HP ZBook 15 G5 motherboard (HP spare part numbers vary based on CPU and GPU configurations).

Place the SMC.bin file directly into the root directory of the USB drive. Execute the Reset: Turn off the ZBook completely. Insert the USB drive.

This comprehensive guide covers the proven methods, technical realities, and step-by-step procedures for resetting or clearing a lost BIOS password on an HP ZBook 15 G5. 1. Understanding HP Enterprise Security

Locate the serial number on the bottom cover of the laptop or via the barcode sticker.

Many repair shops in 2021 simply refused to do ZBook G5 password removals. The risk of bricking the Intel Management Engine was too high, and the motherboard is too expensive to replace ($800+).

While HP does not provide "master passwords" or reset files (SMC.bin) for G5 models anymore, users often attempt these manual steps:

HP Sure Start Gen3 will detect the modified BIOS during the next boot and automatically re-lock the device unless you also disable Sure Start permanently (rarely possible on G5).