Dear I need to upgrade my BIOS on my T440p. The upgrade fails.

The upgrade is mandatory for my due my OS Debian Buster, when I shutdown, my computer is freezing. Others people resolve the issue by upgrading the BIOS.

I have try to upgrade my BIOS in version 2.34 (2015-07-23) to the last version 2.54.

Can you help me ? It is possilbe to download older bios version like 2.53 or older to try to upgrade my old 2.34 BIOS ?

My screenshots :

Moderator note: image containing serial number removed to prevent abuse.  MT-M is 20QWS37C00

One possibility is that the CD/DVD is defective. Can you try to re-create it?

If you look here and scroll down, you can see older versions:

https://pcsupport.lenovo.com/us/en/downloads/ds037575

Thanks, but I have already try a lot of versions but only current old version 2.34 works. I can install version 2.34 (original installed version) but not others version works.

https://pcsupport.lenovo.com/ch/fr/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t440p/20aw/20aws37c00/pc07u0ds/downloads/DS037575

I have try multiple versions :

• 2.54 FAIL
• 2.48 FAIL
• 2.39 FAIL
• 2.37 FAIL
• 2.36 FAIL
• 2.35 FAIL
• 2.34 current verion WORK !! after I try to install others version but without success

Due you have an explaination for this behavior ? Is my computer not upgradable more as existing version.

Well, this may be a bit of a long winded way of doing it, but can you load windows temporarily, update the BIOS using Thinkvantage and then reloading your Debian OS?

two suggestions:

1.  load  default BIOS settings, and try again.

2. Is it still possible to downgrade to an older BIOS version  like 2.33? If yes, are you than able to upgrade to 2.35 or newer?

Hi ruifil,

One other suggestion:

check if UEFI BIOS updating is enabled.