If you can't find the flashlight in the Control Center on your iPhone 13, you may need to add it back. Here's how:
- Open the Settings app on your iPhone.
- Scroll down and tap on "Control Center."
- Under "Customize Controls," tap on the "+" button next to "Flashlight."
The flashlight button should now appear in the Control Center. To access the flashlight, swipe down from the top-right corner of your screen (on iPhone X or later) or swipe up from the bottom edge of any screen (on iPhone 8 or earlier). The flashlight button will be one of the icons on the second row of controls.
If you still can't find the flashlight button after following these steps, you may need to restart your iPhone. To do this, press and hold the Side button (or the Top button on older iPhones) until the power off slider appears. Drag the slider to turn off your iPhone. After it turns off, press and hold the Side button (or Top button) again until you see the Apple logo.
Once your iPhone restarts, the flashlight button should be back in the Control Center.