- At the Home screen, press Security.

 - Select More.

 - Select Tools.

 - Enter the 4-digit master code.

 - Select Date Time.

 - Adjust the month and year with < and > sliders, then press the Down arrow.

 - Select the correct date, then press the Down arrow.

 - Press Clear, then enter the 4-digit time and press Save.

 - Press Back to return to the Home screen.
 
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