cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
leesongyan
Blue Screen Again
Posts: 6
Registered: ‎02-11-2018
Location: MY
Views: 667
Message 1 of 3

T450S how to downgrade bios from 1.32 version to 1.28 version?

Hi Admin,

 

lenovo T450S how to downgrade bios  from 1.32 version to 1.28 version?

 

i able to downgrade to 1.30 version but i try downgrade again got this below issue.Please advise.

 

Reason i downgrade is 1.28 version is stable version for fix the wifi autodisconnect after wake up from sleep mode.

 

OS : windows 10.

 

Capture.PNG

Guru
Posts: 565
Registered: ‎12-30-2017
Location: PL
Views: 638
Message 2 of 3

Re: T450S how to downgrade bios from 1.32 version to 1.28 version?

It's not possible, as stayed in BIOS readme:

 

              If the UEFI BIOS has been updated to 1.30 or higher,
              it is no longer able to roll back to the version before 1.30
              for security improvement.

 

------
...
leesongyan
Blue Screen Again
Posts: 6
Registered: ‎02-11-2018
Location: MY
Views: 594
Message 3 of 3

Re: T450S how to downgrade bios from 1.32 version to 1.28 version?

okay tq so much your fast response.

Check out current deals!


Shop current deals

Top Kudoed Authors