Hi, Kl5-4796,
Try to power reset the unit. Shut down the laptop, unplug the AC power adapter and all connected devices. Look for the battery off button on the bottom of the unit and push and hold it for at least 5 seconds: http://docs.esupport.sony.com/pc/SVS13A2_S1312_S1512_series/EN/contents/04/01/04/04.html.
Regards,
Vincent
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