The program will scan your iPhone backup. Check Notes after the scan, and select the notes you need. Then click Recover. Step 4. Click Open to choose a target folder on your computer. Then click Go to start retrieving deleted notes from iPhone backup.he following tutorial will show you how to get deleted notes back on iPhone 6: 1  Plug iPhone in via USB, and click the iPhone icon in iTunes after iTunes recognized it. 2  Choose Summary in the left sidebar, and the detailed information of iPhone shows up in the right part.