Getting Your iPhone Unstuck
Sometimes iPhones freeze or Apps act wacky.
Don’t bother closing and re-opening the App or turning your iPhone on and off.
Go straight to a reboot.
Different iPhones have different key sequences to initiate a reboot.
On an iPhone X, click the volume up button, click the volume down button then hold the power button until the screen goes black and a white apple appears.
As you hold the power button you’ll see the power off slider. Ignore it and keep holding.
You lose no data during a force restart.
Apple provides online instructions on how to force restart several models of iPhone