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keranisimo
Paper Tape
Posts: 3
Registered: ‎10-11-2015
Location: Bulgaria
Views: 664
Message 1 of 2

t500 bios version problem

Hi, everybody! I update my bios with bios update utility to 3.23 version and my problems began. First my t500 began to enter sleep mode randomly, after check in event viewer it`s ahci code 13. Second problem is very strange, the display dims and the brightness go lower, the laptop is in the ac and battery is ok, after 4-5 seconds it goes to max brightness, may be power plans go wrong, i dont know. Third problem is blue screens and after check the problem is with wifi card. With previos version of bios i dont have any problems. My question is how to downgrade the bios version or is there newer than 3.23? My bios version is 3.23 (6fet93ww)

Community SeniorMod
Community SeniorMod
Posts: 7,082
Registered: ‎01-13-2008
Location: US
Views: 622
Message 2 of 2

Re: t500 bios version problem

Hi,

 

The older BIOS versions are at the bottom of the page.

 

http://support.lenovo.com/us/en/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T50...

 

Z.


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The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog

 

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