noobuser Posted June 26, 2020 Share Posted June 26, 2020 My x240 is currently running Bios ver. 2.49. I would like to downgrade it to ver 2.40. On system reboot, It prompted "Secure Flash Authentication Failed" Please advise on how it could be done. Thank you. Quote Link to comment Share on other sites More sharing options...
Bios Modder Klem Posted June 26, 2020 Bios Modder Share Posted June 26, 2020 1 hour ago, noobuser said: My x240 is currently running Bios ver. 2.49. I would like to downgrade it to ver 2.40. On system reboot, It prompted "Secure Flash Authentication Failed" Please advise on how it could be done. Thank you. https://support.lenovo.com/id/en/solutions/ht117858 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.