Chosen Solution
Hello there. When I first bought the Lenovo V310-15IKB laptop, everything was working as intended, after some years problems with USBs started showing up. At first, the USB 2.0 port stopped recognizing USB 3.0 devices, then it stopped working completely. After some time, one of my USB 3.0 ports stopped working with USB 2.0 devices, and then the same problem appeared in the other USB 3.0 port. Now I have no way to use any USB 2.0 device. Also, I cannot transfer files from my phone (which I connect using a USB 3.0 to USB type C cable. And I was able to do this previously.) I have not made any USB related changes to the system before observing the problems. I have tried using different OSs (Linux and Windows) and also installing and reinstalling every driver provided in Lenovo website. I also tried upgrading the firmware and disabling USB suspension in Linux. Nothing worked. I think (I am really not a expert in this kind of matters) that it is good to mention that my battery is old and not healthy. I have no idea what the actual cause of the problem is, so you are so kind if you help me. Thank you.
I’m guessing the old battery could be the problem but follow these steps are to eliminate possible causes of problem: Go to the Lenovo web site and run the Diagnostics: https://pcsupport.lenovo.com/in/en/produ… Record what they suggest and get back to us. Download BIOS update (if you haven’t already done this). Read directions: https://pcsupport.lenovo.com/in/en/produ… Disconnect main battery: https://www.youtube.com/watch?v=6BkYuv4c… This video shows how to replace battery but all you need to do is disconnect it at beginning of the video. Reset BIOS by disconnecting CMOS battery: 1. Unplug charger then unscrew and open the back of the laptop (see above video). 2. Locate the battery wires and unplug the battery wires 3. Take out/disconnect the CMOS coin battery (a small metallic cell possibly enclosed in black heat shrink) 4. Press the power button for 15 seconds continuously to drain the remaining power 5. Place the CMOS battery again 6. Plug the wires of the main battery again. Note: You could try not connecting it and try running the laptop on just the charge. Bad batteries can do strange things. 7. Place the cover back and put all screws 8. Power on 9. If it does not power on press and hold the power button for about 30 seconds and then press again. It should turn on now. Let us know how it goes. Part Two: So Diagnostics shows: Motherboard Usb Host Controller Count：1 Good and Motherboard Usb Test: Success Good But !!! Motherboard Rtc Test: Warning (CMOS) ===> so replace it. CMOS has became the wide spread word for RTC so there is no difference. This may explain your problem. Bad CMOS (see I’m doing it too!) batteries can cause all kinds of strange problems. Usually about $2 or $3 to replace. Beats a new motherboard for $212- $300 which could still be the problem but I doubt it. Oh and did we also check from the BIOS if you can see any USB drives plugged in to the USB port?
This sounds like bad USB ports. Are you able to solder?
