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2 Posts

01-03-2021

Germany

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  • Message 1 of 6

Downgrade BIOS for T14 AMD Gen1

2021-01-03, 21:54 PM

I've recently updated my thinkpad to 1.29 and since then getting crashes in my linux system together with a bunch of

new errors.
The wifi got also very unstable on linux and windows with lots of new disconnects.

I got downloaded the 1.27 bios update but of course the Winuptp64 does not allow me to downgrade.
Using the winflash64 directly leads to Status: error 2
or when successfully flashing till reboot it states:
"Secure flash authentication failed"

Please advise how to downgrade so i can rule out that its the bios.

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16 Posts

07-07-2020

China

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  • Message 2 of 6

Re:Downgrade BIOS for T14 AMD Gen1

2021-01-04, 1:56 AM

Hi

BIOS1.29 doesn't support rollback, you can wait next bios version release.

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18 Posts

09-15-2020

Austria

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  • Message 3 of 6

Re:Downgrade BIOS for T14 AMD Gen1

2021-01-05, 16:05 PM

hey. Bios Version 1.30 got released yesterday, in case you haven't seen it yet.

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17 Posts

12-24-2014

Slovakia

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  • Message 4 of 6

Re:Downgrade BIOS for T14 AMD Gen1

2021-01-05, 18:04 PM

Did 1.30 help?

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2 Posts

01-03-2021

Germany

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  • Message 5 of 6

Re:Downgrade BIOS for T14 AMD Gen1

2021-01-05, 19:54 PM
no not really
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5 Posts

09-24-2020

Czech Republic

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  • Message 6 of 6

Re:Downgrade BIOS for T14 AMD Gen1

2021-01-14, 12:21 PM

I think its not true, it should allow to downgrade the bios. You have to enable in BIOS the possibility to downgrade BIOS first before you try to downgrade. I did it many times from 1.09 to 1.05 and 1.25 to 1.05 because of USB-C issues I am having on the newer firmware version.

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