Some of the USB ports on IdeaPad Y570 and Y470 do not work - IdeaPad
AFFECTED CONFIGURATIONS

The above symptom may occur on the following systems:

IdeaPad Y570/Y470 with USB 3.0 plus USB 2.0

 

SOLUTION

1. Remove all USB devices from the Machine

2. Go to Lenovo website http://support.lenovo.com/en_US/downloads/default.page? to locate and download oRenesas Electronics USB 3.0 Host Contrller Driver for your machine.

3. After downloading, run the setup accordingly and restart PC once installation is done.

USB ports on IdeaPad Y570 and Y470 do not work

Fig.1