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
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Two T550's one will update bios, the other won't
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Re: Two T550's one will update bios, the other won't
Same USB stick? Same version to upgrade from?
X220, 2 *T520
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Re: Two T550's one will update bios, the other won't
Yes, same version originally, same USB stick.
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Re: Two T550's one will update bios, the other won't
Maybe it has a BIOS setting preventing BIOS flashes?
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