I have purchased E5-573G-389U few months back. Since then I am not able to connect any of my mobiles be it Motorola or Samsung to the laptop. Everytime it says 'Unknown USB device (device descriptor request failed) driver error'.
I have tried a lot of options in your discussion forum but nothing worked. I am just fed up with the problem. I will request you to provide the solution to the said problem at the earliest. It was really a bitter experience buying this laptop.