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t4201
Paper Tape
Posts: 2
Registered: ‎09-14-2019
Location: US
Views: 164
Message 1 of 4

t420 bios update wont work with win 10 pro ver 1903

I have t420 upgrading bios from 1.23 to 3.11 useing both system update 5 an lenovo web service bridge 

and manual upgrade downloading file extracting file using admin prevlages to active file to no avail

it does not upgrage bios like readme file I  can get it to seeing bios on cmd it ask press any key to continue but to no avail

 

Community SeniorMod
Community SeniorMod
Posts: 10,020
Registered: ‎01-01-2010
Location: US
Views: 128
Message 2 of 4

Re: t420 bios update wont work with win 10 pro ver 1903

T420 did not directly support windows 10.  In such a machine, I would never try to do a BIOS update from Windows.  I would burn a bootable CD/DVD


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
t4201
Paper Tape
Posts: 2
Registered: ‎09-14-2019
Location: US
Views: 92
Message 3 of 4

Re: t420 bios update wont work with win 10 pro ver 1903

how do I make bootable dvd for bios update?with
Community SeniorMod
Community SeniorMod
Posts: 10,020
Registered: ‎01-01-2010
Location: US
Views: 80
Message 4 of 4

Re: t420 bios update wont work with win 10 pro ver 1903

https://download.lenovo.com/pccbbs/mobiles/83uj33us.iso

 


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.

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