The screen will display a "System Disabled" message and a 5-8 digit code (e.g., i 54628172 or an alphanumeric code starting with A ).
Disassemble the ZBook 15 G5 completely to expose the motherboard.
: If approved, HP will email you an SMC.bin file. Copy this file to a FAT32-formatted USB flash drive. Insert the drive into the turned-off ZBook, hold down Windows Key + Arrow Up + Arrow Down , and power on the machine. Method 2: Contacting Your IT Department
: You can reset the CMOS—which clears system settings but typically not the password —by holding the power button for 25 seconds on G7 through G10 models, or using Windows + V during startup for older models . Summary of Effectiveness Resets Password? Risk Level CMOS Battery Removal HP Support / Board Replacement Yes (New Board) Safe / Expensive Unlock Code Generators BIOS Chip Reprogramming Reset forgotten HP laptop bios password A [12345678] hp zbook 15 g5 bios password reset
Many users report that HP has discontinued this service for newer models like the G5, instead pushing for motherboard replacements.
Disclaimer: Physical hardware flashing voids warranties and can permanently damage the laptop if done incorrectly. Summary of Best Practices Best Action Success Rate Risk Level Laptop under warranty / Proof of purchase available Contact HP Support for SMC.bin Locked out, no proof of purchase, Windows accessible Check corporate deployment tools (CMSL) Out of options, out of warranty, technical skills available Hardware SPI EEPROM Flashing
A 10-character alphanumeric string found on the bottom cover or inside the battery compartment. The screen will display a "System Disabled" message
How to Reset the BIOS Password on an HP ZBook 15 G5 Forgetting a BIOS administrator password on a high-end workstation like the HP ZBook 15 G5 can be a major roadblock. Whether you need to change boot priorities or update firmware, being locked out of UEFI settings is frustrating.
Standard master password generators found online do not work on this generation of HP hardware. Method 1: The Official HP Support Route (Recommended)
: Navigate to the official HP Support portal. Do not use the standard consumer chat; look for the business or workstation support division. Copy this file to a FAT32-formatted USB flash drive
The HP ZBook 15 G5 is a mobile workstation powerhouse, trusted by engineers, data scientists, and 3D designers. Its BIOS (Basic Input/Output System) is the fortress gate to your hardware, controlling boot order, virtualization, and security features. But what happens when you forget the BIOS Administrator password? Or worse, you buy a used unit from a corporate liquidation sale, only to find a "BIOS Administrator Password" prompt staring back at you?
Note: This requires knowing the current password or having administrative privileges on a machine where the BIOS password is cached.
: On the ZBook 15 G5, disconnecting the coin-cell battery will only reset the system clock. The BIOS password will remain completely intact.