Symbol-It can't translate what you're saying into symbols unless Siri is enabled for your device. To turn on Siri, you need to enable one of the three following settings in the Settings App:   Settings → Siri & Search → Listen for “Hey Siri” Settings → Siri & Search → Press Top (or Home, depending on which iPad you have) Button for Siri Settings → General → Keyboard → Enable Dictation For a live demonstration of this fix, please see this YouTube video.