USB drivers on the xperia play I'm helping out a friend with rooting Xperia play, I spent 5 hours trying to root it yesterday with him and we couldn't. We tried gingerbreak and z4mod but they did not work, so we tried the fastboot way and I can't seem to get the drivers installed properly.

Whenever I try the command to check for the phone in cmd the phone shows no response as if he wasn't connected.

What am I doing wrong?
Steps I've used in the past for this kind of issue :


Check your USB cable - some are no good for data. (this is
frequently the issue when my computer can't see my phone) 
reboot everything 
you say the drivers aren't installing - what's the issue there? try manually installing the drivers.