15 Things You Did Not Know Your iPhone Could Do. Did you change your mind about that text you just tapped in? Shake your phone, and an “Undo Typing” box will come up. If you change your mind shake it again and a redo typing box will pop up
Hold 0 to Get Degree Icon If your topic is related to weather or chemistry, you may need this function to present “degree”. Hold the number zero for several seconds, and the degree icon will show above.
Use this little trick when you want to go back and forth between the alpha and numeric keyboard. / Press the slide to the character you want and it will auto-change bacto alphabet! / 19 Mind-Blowing Tricks Every iPhone And iPad User Should Know