USB error 43
USB error 43
Hello, everyone!
I’m facing a rather bothersome and unusual issue. After turning my PC on immediately after restarting, I attempted to log in but the keyboard on my laptop stopped working. I restarted it several times without any improvement. In the Device Manager, I found an entry labeled USB devices with error code 43. I looked up the problem and tried some solutions: updating the USB drivers, disabling the power management feature that turns off devices. Still nothing resolved the issue.
I then unplugged the charging cable and restarted the laptop (first turning it off, then turning it back on). The keyboard functioned properly and error 43 vanished. During testing, I discovered some peculiar patterns:
- Error 43 appears when updating drivers for the Intel® USB 3.1 host controller.
- If I power off the laptop and connect a charging cable, the error disappears.
- When using an external battery-powered laptop, the keyboard works fine.
- If I connect a power supply, the keyboard stops working and error 43 appears.
- Other USB peripherals like external keyboards and mice are unaffected.
I explored additional troubleshooting steps, including disabling the battery and editing the registry, but without success. I’m not sure if this is due to hardware faults or software glitches. If you have any suggestions or insights on how to resolve this, please let me know. Thank you!
With all things said and done, what is the make and model of your laptop? An SKU will help us two fold. Can you also see what your BIOS version for said laptop is at the time of writing? OS? Windows 10? If so, what version(not edition) are you working with? How old is the laptop(and battery)?
My Lenovo Legion Y7000 2019 laptop with an RTX 2060 and a Core i7 9750 H has 8GB RAM. I'm using Windows 10, which later upgraded to Windows 11 after an update. The latest Windows 10 version I had was 20H1, then it moved to 21H1 and finally to Windows 11. The issue started when I tried to update from Windows 10 to Windows 11, but the battery is still not working properly. I attempted to remove the battery by disassembling the laptop, waited a few minutes, and reassembled it. The keyboard still doesn't function when I turn the laptop on with the charging cable connected.
The bios version is BHCN42WW. I also attempted to reset the bios to default settings.
I assumed you checked BIOS updates for your laptop using its serial number on Lenovo's support page. Personally, I would have waited a year before adopting Windows 11 since all issues were resolved then. I believe the main concerns are hardware and software, as drivers are required to help components communicate. It seems you're on the latest BIOS version—did you obtain all necessary drivers for your laptop (except GPU) from Lenovo's support site before updating Windows? You should download the drivers on a different system to avoid the OS mistakenly installing the best ones for your setup.
I used the command prompt to check the SMBIOS version. I think about reverting to Windows 10 soon or later, just in case someone suggests a solution for my issue. There seems to be no way to reinstall drivers completely. When I try to download drivers from the Lenovo Support site and install them, the error appears that I already have them installed. Thank you for your reply!