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4 Posts

04-26-2019

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Two T550's One will update bios, the other won't

2020-09-13, 18:28 PM

I have two identical T550's that have n11et34w(1.10) bios. Both are set up the same way. One I was able to update to the n11ur20w bios, the other fails with the message "secure flash update failed".

 

Does anyone have a suggestion why this happened and how to fix it?

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375 Posts

06-26-2016

DE

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Re:Two T550's One will update bios, the other won't

2020-09-13, 19:08 PM

Did you upgrade directly from 1.10 to 1,28? Check if the ECP was upgraded to 1.09  and consider a restore default setup on that system.

 

For the other system, try to flash to an older BIOS version with ECP 1.08 first. 

Also try  using the ISO images. In my experience, this usually works more reliably.

I don not own a T550, so please check carefully the BIOS release notes for the different BIOS versions.

 

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4 Posts

04-26-2019

US

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  • Posts: 4
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  • Views: 47
  • Message 3 of 4

Re:Two T550's One will update bios, the other won't

2020-09-13, 19:23 PM
Thanks for the reply. I did use the iso images.
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375 Posts

06-26-2016

DE

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Re:Two T550's One will update bios, the other won't

2020-09-13, 19:30 PM

from the release notes

 

<1.14> 

UEFI: 1.14 / ECP: 1.08

- (Fix) Fixed an issue where BIOS update might fail after illegal shutdown.

 

whatever illegal shutdown means...

 

you can find all BIOS version on this page 

https://pcsupport.lenovo.com/de/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t550/downloads/DS102339

 

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