05-08-2014 08:02 AM
I have a laptop with windows 8.1. The problem is out of my 3 USB ports (2 USB2.0 and 1 USB 3.0) USB 3.0 does not work at all.
When i try to plugin any device like a Pendrive it dosent read, if I insert a cooler it gives no power. I think it may be a hardware problem but in the device manager
there is 1 USB Root HUB(xHCI) which i think is for my 3.0, however some tabs seems to be missing like Power, Advanced.
05-08-2014 08:13 AM
I had this exact same problem, an external drive only worked in right side usb 2.0 port at stupid slow speeds on my z510 i7. I tried deleting all the choices in system devices and letting it reinstall, but that did not change anything. Lenovo gave me the worst customer service and their computers suck, this is the first time I bought one of them and will be the last.