When Apple introduced iOS 8 last September, one of the new features was a way to invoke Siri without touching the iPhone. If your iPhone is plugged in, all you need to do is say “Hey Siri!” and your phone will come to life and Siri will be ready to assist you.
My problem with this feature is that it only works when plugged in. Or does it?
While making a cup of coffee the other day, I discovered a little hack. I had used Siri for something and began stirring milk and sugar into my coffee as Siri gave me what i asked for. I then realized that I wanted something else from Siri so I said “Hey Siri!” and then immediately remembered that my iPhone wasn’t plugged in. However, to my surprise, Siri responded! So I issued my command and Siri obeyed. I’ve tried this hack a number of times since then and it has worked 100% of the time.
Basically, as long as you have just used Siri, and the screen is still on, you can use the “Hey Siri” feature if you want something else from Siri, whether the phone is plugged in or not.
By the way, if you’ve never used “Hey Siri” and would like to start, you have to enable it first. This can be done quickly and easily by going to Settings, then General, then Siri and tap the switch next to Allow “Hey Siri”.