Zte Z557 User Manual page 41

Use Gboard
Gboard provides a layout similar to a desktop computer
keyboard. When screen auto-rotation is enabled, turn the phone
sideways and the keyboard will change from portrait to
landscape. The landscape keyboard is not supported in all
applications.
 Touch the alphabetic keys to enter letters. Touch and hold
some specific keys to enter associated accented letters or
numbers. For example, to enter É, touch and hold
available accented letters and number 3 appear. Then slide to
choose É.
 As you enter a word, candidates appear above the keyboard.
Touch to select the correct one.
 Touch
uppercase. This key also changes to indicate the current
case you are using:
and when locked in uppercase.
 Touch
to use uppercase. Double-tap
for lowercase,
to delete the text before the cursor.
41
and the
to lock
for uppercase,