Owner's Manual
Page 34
... turn off. Connect the cableless wall adapter and USB data cable. It is downloadable from the following site: http://www.lg.com/us/mobile-phones/index.jsp > Click Mobile Support > Select the Carrier(Sprint) > Select the Model (Optimus S™) > Click USB Cable Driver to install the necessary USB drivers on your device and connect the other end...
... turn off. Connect the cableless wall adapter and USB data cable. It is downloadable from the following site: http://www.lg.com/us/mobile-phones/index.jsp > Click Mobile Support > Select the Carrier(Sprint) > Select the Model (Optimus S™) > Click USB Cable Driver to install the necessary USB drivers on your device and connect the other end...