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Before you begin, Turn off your computer and connected devices, Safety instructions – Dell Inspiron 15R (5520, Mid 2012) User Manual

Page 7

Before you begin, Turn off your computer and connected devices, Safety instructions | Dell Inspiron 15R (5520, Mid 2012) User Manual | Page 7 / 84 Before you begin, Turn off your computer and connected devices, Safety instructions | Dell Inspiron 15R (5520, Mid 2012) User Manual | Page 7 / 84