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29 Posts

05-14-2009

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USB port stopped working: Thinkpad X1 Carbon

2018-05-12, 15:10 PM

The left USB port stopped working last night on my Gen 3 Thinkpad X1 Carbon.

Don't think it's a driver problem, as it's been working fire up til now.

The port just no longer exists as far as I can see. Plugging into it does nothing.

 

Any ideas?

Thanks

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5560 Posts

04-25-2008

United States of America

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Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 13:39 PM

devnulljp, did you try the emergency reset button?

USB-C: Just cos it fits don't mean it works.
I don't work for Lenovo. I'm a crazy volunteer!
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4219 Posts

12-22-2008

Canada

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  • Message 2 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-12, 16:38 PM

The port just no longer exists as far as I can see. 

 

What does Device Manager show (under Universal Serial Bus controllers)?

 

Don't think it's a driver problem, as it's been working fire up til now.

 

1. It could still be a driver issue. I would uninstall the current USB driver even if it's up-to-date, then download the latest version and reinstall it. 

 

2. It could be a hardware issue. The X1C3 has two USB 3.0 ports. Does the other port work? If it does then it's likely the issue with the other port is hardware-related.


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80 Posts

03-12-2018

Singapore

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Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 2:16 AM

Probably motherboard issue, if still under warranty and claim from Lenovo.

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29 Posts

05-14-2009

Canada

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Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 5:38 AM
Yes the other USB port is working, so prob not a driver issue. Dammit, I'm having no luck with these modern Lenovo Thinkpads.
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4219 Posts

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  • Message 5 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 12:56 PM

 wrote:
Yes the other USB port is working, so prob not a driver issue. Dammit, I'm having no luck with these modern Lenovo Thinkpads.

If the X1C3 is no longer under warranty then an inexpensive 4-port USB hub in the working port is a lot cheaper than a new motherboard. It's not as convenient, of course, but that's probably what I'd do under the circumstances.


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5560 Posts

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  • Message 6 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 13:39 PM

devnulljp, did you try the emergency reset button?

USB-C: Just cos it fits don't mean it works.
I don't work for Lenovo. I'm a crazy volunteer!

0 person found this solution to be helpful.

This helped me too

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29 Posts

05-14-2009

Canada

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  • Message 7 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 15:21 PM
No I didn't try the reset. I'll give it a go now and report back.
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29 Posts

05-14-2009

Canada

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  • Message 8 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-05-13, 15:30 PM

Brilliant! That did it. Thanks

Shut down, emergency reset. Start up and the port is working again.

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1 Posts

08-14-2018

United Kingdom of Great Britain and Northern Ireland

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  • Message 9 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-08-14, 16:17 PM

Hi,

 

How do you perform this emergency reset? im having the same issue as the op.

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09-21-2018

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  • Message 10 of 16

Re: USB port stopped working: Thinkpad X1 Carbon

2018-09-21, 11:14 AM

for emergency reset, power off the device and unplug the power cord.

then, on the back of the computer, search for a little hole.

use a bented paper clip to push the button in the hole.

(i assume this disconnects the battery physically or so)

 

btw. i have the same problem, but this reset does not work for me, see https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/data-connection-for-left-hand-standard-usb-port-stopped-working/td-p/4213866

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