Go to your Settings menu then General. Tap in the body of the message. How to Type Special Characters and Symbols on iPhone or iPad.
What you see when you first glance at the iPhone or iPad keyboard are the regular letters numbers and symbols youre most likely to use in everyday communication.
To define a shortcut go to Settings General Keyboard Shortcuts. Tap Keyboard Settings then turn off Predictive. To reject a correction tap the x If you reject the same suggestion a few times iPhone stops suggesting it. Type a shortcut prompt -- for example 2x without quotation marks -- into Shortcut and select Save Now whenever you type the prompt the squared symbol is made available as an automatic option above your keyboard.