If you can't get Apple Pay working, make sure it's toggled on in your 'Face ID & Passcode' settings.If you get a message saying that in-app purchases are not allowed, make sure 'In-App Purchases' isn't toggled off in your 'Restrictions' settings.If you don't see the App Store app, make sure 'Installing Apps' isn't toggled off in your 'Restrictions' settings.If you're not connected to the internet, it won't work, so make sure Airplane Mode is not activated and that you have either a good cellular or Wi-Fi connection.

If you think it's a software glitch, try restarting or even force-restarting your iPhone X.

If you think it's an app glitch, try force-closing the app and reopening it.

If you're double-clicking the Side button like you should be, or if the prompt isn't even coming up, there are few more things you can try to get it working properly.

Don't Miss: Side Button Cheat Sheet for the iPhone X (It's Not Just Power Anymore).

Perhaps 'Double Click Side Button' would be enough. I know a lot of people think of 'click' as a 'tap' or 'press' on the screen, so maybe Apple will one day make the on-screen instructions a little more detailed. So there's you're answer - 'Double Click to Install' or 'Double Click to Pay' simply means you need to press the Side button twice quickly. Answer: Double-Click the Side ButtonĪpple's on-screen instructions are right next to the Side button, so when the animation on the far right is moving, that's trying to get you to double-click on the Side button.

On smartphones, it also means to operate a physical button or switch on the device, something that could make a 'click' sound, even if it doesn't. It's an onomatopoeia, where the word takes after the sound it makes. In the computing world, click is used to denote the action of pressing a mouse button.

But when you think about what the word 'click' means, things should become very clear. We've had users tell us that they were tapping all over the screen and even trying to swipe the on-screen instructions over because it looked like the area to tap was hidden. If you're rushing to 'double click' and it's not working, it's probably because you're double-tapping on the display itself.

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