Samsung Galaxy Tab A 10.1 with S Pen 用户手册

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页码 157
Accessories 
Configure options when using a book cover (not included). 
Flip the cover open to unlock the screen when secure 
lock is turned off. 
1.  From a Home screen, tap 
Apps > 
Settings
2.  Tap Accessories > Automatic unlock to enable this 
feature. 
Settings  
147 
Accessories