Confusing BIOS version

[corttex]

I have latest BIOS v 02.77 for HP 800 G1 SFF updated from Your site in april 2019. Now I see on Your site that is latest BIOS v02.71 from may 2017. What is happening...

[Grzwacz]

Greetings,

Welcome back to the forum.

I am not a HP employee.

Is your PC working okay?

HP must have removed the 2.77 BIOS update for some reason.

Don't see version BIOS 2.77 in the Revision history section at this HP Support site (Link).

Regards

[corttex]

This was the latest BIOS version until a couple of days ago:

TITLE: HP Business Desktop System BIOS (L01)
VERSION: 00.02.77
DESCRIPTION:HP Business Desktop System BIOS Package for models with an L01 BIOS.

PURPOSE: Critical
SoftPaq NUMBER: SP96014
SUPERSEDES:SP88063
EFFECTIVE DATE: 4/30/2019
CATEGORY: BIOS
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Desktops
Thin Clients

ENHANCEMENTS:
Update to latest Intel microcode 0x27
Due to security changes, after loading this BIOS, older versions cannot be installed.

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 (Windows Only).

Copyright (c) 2019 HP Development Company, L.P.

...and now there is much older BIOS version mark as latest...

TITLE: HP Business Desktop System BIOS (L01)
VERSION: 00.02.71
DESCRIPTION:
This package provides the HP Business Desktop System BIOS Package for supported models running a supported operating system.

PURPOSE: Recommended
SoftPaq NUMBER: SP80501
SUPERSEDES:SP77880
EFFECTIVE DATE: 5/26/2017
CATEGORY: BIOS
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Desktops
Thin Clients

FIXES:
- Fixed issue where a scheduled BIOS network update would not work if a BIOS admin password existed in the system.

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 (Windows Only).

Copyright (c) 2017 HP Development Company, L.P.

[lUCIVITY]

Here you go Corttex 😎

Download HP EliteDesk 800 G1 SFF BIOS L01 v2.77

Found the link inside this: https://support.hp.com/au-en/document/c06330149

I just upgraded from v2.75 to v2.77 from within Windows without issues:

There was an extended lockup during the final block flashing compared to past experiences but eventually it came back to life. Also, for me at least, the post-flash reboot countdown had broken text/english and the countdown numbers disappeared when I clicked on them. Auto-reboot did kick-in on schedule though and the PC booted without issues.

As for why v2.77 has been seemingly rolled back four prod releases to v2.71 (and not to say v2.75) is a mystery. 

Taking a closer loook, different BIOS versions are visible for download via the web interface depending on what Windows OS/architecture is selected. I suspect someone made a mistake and suggest OS categorisation of the item is the issue given the .exe is still hosted. HP staff may want to provide clarification / confirmation / correction here...pure conjecture!