THANK YOU THANK YOU THANK YOU!!!!!!!! I just successfully updated the BIOS to 1.23 and then 3.96!!!!!!!! Next will be to update the second of the machines. Thank you so much. You're a project saver!...

I appreciate the response. I already found that post prior to responding to this one and could not get the links to work in Edge or using FileZilla on 2 different windows PCs, one an HP laptop.

Do I need to use the PC I am attempting to update to access them?

Thanks Again!...

First PC:
- Product Number: LJ449AV
- Serial Number: 2UA2310457

Second PC:
- Product Number: LJ449AV
- Serial Number: 2UA2490F6R

🙏 Thank you 🙏...

Hi All, I recently picked up two HP z420 PCs that have a boot block date from 2011 and are still on BIOS rev 1.02. I've been doing some reading and I need to first update to 1.07, then 1.23 before I can update to the most recent (3.96 I think it is), but I can't for the life of me find a download for the older versions. The official HP links are broken and this is the first place I found with any downloads but it seemed like these may be custom edited BIOS files so I wanted to query [USER="237374"]SMDFlea[/USER] and see if they could send me in the right direction. Thanks in advance...

Hi All,

I'm a bit of a budget PC hardware enthusiast and I found the forum because I'm trying to update the BIOS on my HP z420, and the files are no longer available, and found a post here with recent activity instructing how to take care of the issue, so hopefully this solves my issue.