09-14-2017 09:19 PM
Hi. I've been having X1 carbon 5th gen for a few months and have been satisfied with it.
But today I found out that the USB port located on left side is not working properly.
Here are the symptoms:
- USB storage such as USB sticks or portable HDD work fine, and data get transferred normally.
- It also charges smartphones and other devices that can be charged by USB.
- It does not detect corded inputs such as external keypad, mouse, and, keyboard. The USB port located on right side works perfectly.
I find it to be really weird with this problem. Input devices do not work at all when USB storages work just fine.
I have tried reinstalling Windows fully, installed all the latest updates including the latest BIOS, have set the BIOS settings to default, and nothing worked. I'm curious if it could be some driver or BIOS driver issue or pure hardware defect.
Has anyone experienced this? If there are other things I could try before sending it for repair please let me know.
09-14-2017 10:18 PM
Try hooking a powered hub to the port. If that "fixes" it, it's likely a power problem
09-14-2017 11:27 PM
06-18-2018 01:04 PM - edited 06-18-2018 01:05 PM
I actually have the same problem.
I've been with the left usb port for a month now without proper operation.
what was the solution lenovo delivered?
I need to connect external devices
06-29-2018 10:06 PM
I am having same problem. Read somewhere to try unplugging battery and holding down power button to fully turn off machine, didn't help.
Have checked drivers for xhci USB3 in device manager, windows update says latest installed.
USB flash drives will work, mice, HID's and other stuff won't. Only the left USB-A port, 5th gen X1 20HR-006SUS
05-08-2019 12:51 AM
05-08-2019 04:49 AM
Lenovo Support Service replace the mainboard.
If the problem is on the USB right port, they can replace just a single piece.
I have a X1 20HR too.
05-21-2019 07:29 AM
05-21-2019 07:43 AM
This is a problem with the Thunderbolt Firmware. My organization has sent about 30 of these back to Lenovo and everytime they have replaced the motherboard. We sent a few units to the Engineers in North Carolina, and they stated it is a FW issue, they have no eta on a update/fix. Some units will lose charging capability all together, these need the board replaced. On the units that still can charge, we have had some luck with doing the bios and intel fw updates through system updater, and it seems to fix the ports not working. It is very random with when it works and when it doesnt.