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5 Posts

03-26-2018

Bulgaria

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X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 10:09 AM

Dear All,

 

After last BIOS update (middle of March 2018) left USB port stopped to work on my X1 Carbon (type: 20A8S04N1H). Please, help!

Thank you in advance!

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823 Posts

01-09-2012

United Kingdom of Great Britain and Northern Ireland

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Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 10:41 AM
in device manager does it show any problems?
http://www.mcci.com/mcci-v5/support/howtos1.html
Thx dave

yoga 2, lenovo b540
3 custom gaming pc systems
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5 Posts

03-26-2018

Bulgaria

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Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 10:48 AM
Thank you for reply.
There is no any problems indicated in the device manager.
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823 Posts

01-09-2012

United Kingdom of Great Britain and Northern Ireland

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Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 11:18 AM
https://pcsupport.lenovo.com/ca/en/products/laptops-and-netbooks/thinkpad-x-series-laptops/thinkpad-x1-carbon-type-20a7-20a8/20a8/downloads
try installing the chipset drivers again and see if that works, reboot after you install them
Thx dave

yoga 2, lenovo b540
3 custom gaming pc systems
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5 Posts

03-26-2018

Bulgaria

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Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 12:42 PM
Done but without result.
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823 Posts

01-09-2012

United Kingdom of Great Britain and Northern Ireland

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  • Message 6 of 9

Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 13:43 PM
https://pcsupport.lenovo.com/cr/en/products/LAPTOPS-AND-NETBOOKS/THINKPAD-X-SERIES-LAPTOPS/THINKPAD-X1-CARBON-TYPE-20A7-20A8/downloads/DS039782
download and install the old bios and see if you get the usb back
Thx dave

yoga 2, lenovo b540
3 custom gaming pc systems
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5 Posts

03-26-2018

Bulgaria

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Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 14:32 PM
Downgrade to the previous version did not help...

Could it be a power supply problem?

When I insert a mous to the right USB port the light appears but nothing happens when it is inserted in the left one...
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12107 Posts

01-02-2010

United States of America

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  • Message 8 of 9

Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2018-03-26, 15:39 PM

Left side USB is on a separate, audio card.  I would guess the problrm is hardware.  Either the ribbon cable is unplugged or the audio card died.  See if the headphone jack works.


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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7 Posts

08-09-2018

Pakistan

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  • Message 9 of 9

Re: X1 Carbon 2nd generation left USB stopped to work after last BIOS update

2019-01-22, 19:56 PM

Hello i have the same problem my left usb is not working also audio jack is not working. Please tell what can i do if its hardware problem. Can i open my laptop lid.? Is there any way to make them as there are only two usbs on lenovo x1 carbon 2nd generation and i am only left with 1 usb. HELP PLEASE 

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