If your iPhone won't turn off the usual way, you can force restart it with a button combination specific to your iPhone model.
A frozen phone is a common phenomenon, but thankfully, there are ways to bring your device back to life. If your iPhone isn't ...
Restarting your iPhone is usually the quickest cure for everyday annoyances, from apps freezing up to network hiccups. In fact, you should probably be restarting your iPhone more often than you think.