Install Libreboot on HP EliteBook 8460p/8470p

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Specifications
Manufacturer	HP
Name	EliteBook 8460p/8470p
Released	2011/2012
Chipset	Intel QM67/QM77
CPU	Socket G2, Intel Sandy/Ivy Bridge
Graphics	Intel HD 3000/4000
Display	14" 1366x768 / 1600x900 TFT
Memory	16GB DDR3L SODIMMS (2x8 GB)
Architecture	x86-64-v2 (+ older) (v1 for Sandy)
EC	SMSC KBC1126, proprietary
Original boot firmware	HP UEFI firmware
Intel ME/AMD PSP	Present. Disabled with me_cleaner.
Flash chip	SOIC-8 8MiB (64Mbit)

W+: Works without vendor firmware;
N: Doesn't work;
W*: Works with vendor firmware;
U: Untested;
P+: Partially works;
P*: Partially works with vendor firmware

Features
Internal flashing with original boot firmware	N
Display (if Intel GPU)	W+
Audio	W+
RAM Init	W+
External output	W+
Display brightness	W+

Download from release

If you’re using a release ROM, please ensure that you’ve inserted extra firmware required refer to the guide for that (, failure to adhere to this advice will result in a bricked machine):

• Intel ME (vendor blob)

Build from source

For the older one:

./mk -b coreboot hp_elitebook_8460p_gpu_intel_8mb

For the newer one

./mk -b coreboot hp_elitebook_8470p_gpu_intel_16mb

Default Libreboot firmwares updatable.

REMOVE all power sources like battery, charger and so on, before doing this. This is to prevent short circuiting and power surges while flashing.

At this present time, disassembly instructions are unavailable from the Libreboot project, but you can search for HP’s own hardware maintenance manual or look at videos online showing disassembly.

Check the hw-flashing guide before moving onto the next step below.

Flash it: (With rpi-pico as an example, edit the line if needed.)

flashprog -p serprog:dev=/dev/ttyACM0,spispeed=16M -w filename.rom

8460p

The flash chip is visible by removing the “bottom door” panel. But the frame makes it hard to put a clip on it, so it’s recommended to follow the HP service manual to remove the bottom cover, as it’s called.

8470p

The flash is near the RAM, top side. (sorry, I forgot to take photos when testing this, but they can be added here at a later date)

This platform uses an Intel Flash Descriptor, and defines an Intel GbE NVM region. As such, release/build ROMs will contain the same MAC address. To change the MAC address, please read nvmutil documentation.

Difference: 8460p / 8470p

*1 HP 2012 Docking Stations compatible; HSTNN-I11X models

SPDX-License-Identifier: GFDL-1.3-or-later

Markdown file for this page: https://libreboot.org/docs/install/hp8460p.md

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