How To Write A Letter On Iphone 12 . Tiktok video from writejackiewrite (@writejackiewrite): In a note, tap , then do any of the following: For Apple iPhone 12 Case Cute Letters Silicone Soft TPU Back Cover For from hodhodmart.com In case, if you can’t see the canvas, tap on handwriting button from the bottom right corner. To start another line of text in the cell, touch and hold the shift key and tap next. Open messages and tap the compose button.