BLU Samba W - Manual (Page 5)

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navigate.
 OK/Selection key
Press it to confirm your selection.
 Delete key
Press it to delete a character before cursor.
 Linefeed
This key helps to switch to another line when the interface is in the edit interface.
 Shift key
Press this key to switch between input methods.
 Space key
Use this key for a blank space.
 Sym key
Press it in the edit interface to input a symbol.
 Alt key
In edit interface, press it to input an alternative symbol or number.
 Audio player key
Press key to access audio player interface.
 TV key
Press key to access TV interface.
 Number and letters
Press number keys or letter keys to in input or edit state to input numbers or letters.