Open the Messaging app (set it as your default, if necessary), then tap the New message icon .
Enter the recipient(s) in the To box.
Tap the Contacts icon , then select one or more entries from your Contacts list.
Enter a name (or a partial number) then tap a suggestion displayed from your Contacts list.
Enter a number manually for phone numbers not in your Contacts list.
Tap the text box, then enter your message.
A character counter is displayed in the message box to let you know how many more characters you can type and also the number of pages in the message.
To Box
Tap here to enter the recipient(s) manually.
Message Box
Tap here to enter your message.
Attachment Icon
Tap here to add an attachment to your message.
Contacts Icon
Tap here to enter the recipient(s) by selecting from entries in your Contacts.
If you tap the Back Button while composing a message, it’s automatically saved as a draft. The Draft icon on the right side of the message thread indicates a pending draft message to the recipient. Tap the message to resume composing it.
Tap the Send button to send the message.
Your message is displayed and responses appear in the same window, creating a message thread with that contact.