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

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larry29936
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Joined: Mon Sep 14, 2020 12:03 pm
Location: Coastal, South Carolina

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

#1 Post by larry29936 » Mon Sep 14, 2020 1:01 pm

I have two T550's which are configured identically. On one, I was able to upgrade the bios from n11et34w (08/15) to n11ur20w (04/20). On the other, I get the following error: "secure flash upgrade failed". I created the USB using the following method:
1. geteltorito -o bios.img n11ur20w.iso
2. sudo dd if=bios.img of=/dev/sdb bs=64K

Does anyone have any idea why one would update but the other fails?

Thanks in advance,
Larry

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

#2 Post by atagunov » Mon Sep 14, 2020 1:52 pm

Same USB stick? Same version to upgrade from?
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larry29936
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Joined: Mon Sep 14, 2020 12:03 pm
Location: Coastal, South Carolina

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

#3 Post by larry29936 » Mon Sep 14, 2020 2:43 pm

Yes, same version originally, same USB stick.

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

#4 Post by TPFanatic » Mon Sep 14, 2020 6:53 pm

Maybe it has a BIOS setting preventing BIOS flashes?
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