If you are having problems with your Toshiba Satellite C55-A5300, refer to this troubleshooting guide
Background and Identification
Released in 2013, the C50 series provides touchpad support, a wider display, an HD webcam, a DVD drive and built-in wi-fi. This model was a continuation of the Toshiba Satellite’s original goal of providing the essentials cheaply and efficiently to the average customer and was eventually succeeded by the Toshiba Satellite C70 series. This model can be identified by the "Satellite" label next to the touchpad and the bar code sticker on the bottom of the device.