Easiest way to install the flash drivers is just by installing SEUS. After that, make sure you have the phone powered off and then hold down the "c" button while connecting the phone to the usb port. If that doesn't work the first time, remove the battery for a few seconds, and put it back in. Do not power on the phone, just hold down the "c" button and try connecting to the usb port again. It is important to hold the button while connecting.