10-29-2015 07:10 AM
I got my ThinkPad T450 2-3 weeks ago. I wanted to update my BIOS to the latest version (1.18) coming from version 1.17 as of writing.
When trying to flash my BIOS I get the following message: "Secure Flash Authentication Failed".
Then I arrived at the following KB article which does not seem to work for me at all:
Personal website: ThinkScopes
Solved! Go to Solution.
03-21-2016 06:11 AM
Lenovo has released a Service Tip that provides a step-by-step procedure on how to rollback to older BIOS versions on T450 and T450s ThinkPads. This will assist customers who receive a "Secure Flash Authentication Failed" message when trying to roll back to version JBET55WW or older.
The Tip can be found here: https://support.lenovo.com/us/en/documents/SF16-T0023
09-18-2019 08:20 AM
This isn't solved for me, the posters (and I) are doing what this Tip says (disable Secure Rollback Prevention in the BIOS) and it still won't update. Has anyone had any luck at all with any other solution?
This is also trying to update to new versions, not to roll back.