TITLE: HP BIOS and System Firmware (V77)
VERSION: 01.09.00 REV: A PASS: 1
DESCRIPTION:
This package is used to update the supported firmware on HP Business Notebook
systems with a V77 family BIOS.

NOTE: To determine the ROM family and ROM date, press F10 on the computer system
during startup to run the Setup Utility, and then view File/System Information.
PURPOSE: Critical
SOFTPAQ NUMBER: sp157470
SOFTPAQ FILE NAME: sp157470.exe
SOFTPAQ MD5: 8DA2EE913C8E08EFDD602E060776B3C2
SUPERSEDES: sp156874
EFFECTIVE DATE: March 14, 2025
CATEGORY: BIOS - System Firmware
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Notebooks
HARDWARE PRODUCT MODEL(S):
HP EliteBook 645 14 inch G10 Notebook PC
HP EliteBook 655 15.6 inch G10 Notebook PC

OPERATING SYSTEM(S):
Microsoft Windows 10 All Editions (64-bit)
Microsoft Windows 11

LANGUAGE(S): Global

ENHANCEMENTS:
- Addresses security vulnerabilities CVE-2021-39301, CVE-2024-0179, and
CVE-2024-21925.
- Improves Secure Key management.

- Includes the following firmware:
AMD Platform Security Processor (PSP) Firmware, version 0.11.00.85
AMD System Management Unit (SMU) Firmware, version 64.72.127
Embedded Controller (EC), version 53.33.00
Intel/AMD/NVIDIA Graphics Output Protocol (GOP), version 2.24.0.17.10
Intel/AMD/NVIDIA Video BIOS, version BRT97511.001
Intel/Realtek PXE ROM, version 2.67
Intel/Realtek UEFI PXE ROM, version 2.052
Realtek Power Delivery (PD) Firmware, version 2.2.0
TI Power Delivery (PD) Firmware, version 5.3.0
PREREQUISITES: NONE
HOW TO USE:
1. Download the file by clicking the Download or Obtain Software button and
saving the file to a folder on your hard drive (make a note of the folder where
the downloaded file is saved).

2. Double-click the downloaded file and follow the on-screen instructions.

Copyright (c) 2025 HP Development Company, L.P.