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The Lenovo ThinkPad S431 is a laptop with an aluminum exterior. It can be identified by looking for the model number "S431" on the right top corner of the keyboard. The ThinkPad is 0.8 inches thick and has a touch-enabled display.

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Right USB ports randomly stopped working

The right usb port on my s431 laptop randomly stopped working and displays a “USB device malfunctioned message”. When I reseated the USB board the port started working but then the next day it stopped working. Would this USB board require a replacement or is there something else that is wrong? All the other parts on the board like the HDMI port and the audio jack still work it’s just the USB port on the right.

Ответ на этот вопрос У меня та же проблема

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Hi @jimmysofat6864 ,

Check that the USB port’s power is not being turned off.

Go to Device Manager > Universal Serial Bus Controllers > right click Root Hub > Properties > Power Management and check that the option “Allow the computer to turn off this device to save power” has been unchecked.

To get to Device Manager, press the Win key + x key (both together) and click on the Device Manager link

I don’t know which root hub is associated with the right USB port, so you will have to check all of them.

Here’s an image from my PC just to show what I mean. It is slightly different as I have a different PC, so different hardware but for the USB Root Hub entries, the principle is the same.

Block Image

(click on image to enlarge.

If still no good you may have to replace the card or the connecting cable and check if that resolves the problem.

Search online for 04X1089 to find suppliers of the card w/cable that suit you best.

Here’s the hardware maintenance manual for the laptop. Go to p.82 to view the necessary pre-requisite steps and then the procedure to remove/replace the Audio, HDMI, and USB card (aka IO port sub card)

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I unchecked it for each usb port/controller and I still have the same issue. Sometimes it randomly dies and comes back but unplugging and replugging in the USB board seems to fix it. I'm probably going to keep it the way it is because the replacement boards are kind of expensive.

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Jimmy Luong будет вечно благодарен.
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