When your iPhone 15 freezes up or acts weird, a simple reboot fixes most minor software glitches. You don't need technical skills or special tools to get your device running smoothly again.
Different situations require different approaches. If your screen responds to touch, you can use the software menu. If buttons work but the screen is frozen, physical key combinations do the job. When the phone completely locks up, a force restart cuts through the freeze.
Standard Restart Using Buttons
If your phone functions normally and you just want to turn it off and on, use the physical button combination.
- Press and hold the Side button (on the right edge) and either the Volume Up or Volume Down button at the same time.
- Keep holding them until the slide to power off slider appears at the top of the screen.
- Drag the slider to the right.
- Wait about 30 seconds for the screen to go completely dark.
- To turn the phone back on, press and hold the Side button until the Apple logo appears.
Software Restart Through Settings
You don't need physical buttons to power down your device. If your side button feels loose or broken, Apple includes a software switch inside the operating system.
- Open the Settings app from your home screen.
- Tap on General.
- Scroll all the way to the bottom of the menu and tap Shut Down.
- Drag the power off slider across the screen.
- Once the phone turns off, plug it into a USB-C cable or press the Side button to boot it back up.
Force Restart When Your Screen Freezes
Sometimes an app crashes so hard that standard buttons and menus stop responding. When your iPhone 15 locks up entirely, you need a hard reset. This doesn't delete your personal files or photos; it just forces the hardware to cut power and reboot.
- Press and quickly release the Volume Up button.
- Press and quickly release the Volume Down button.
- Immediately press and hold the Side button.
- Ignore any sliders that appear on the screen and keep holding the Side button until the screen goes black and the Apple logo pops up.
- Let go of the button and let the phone finish loading its lock screen.
According to Apple Support, timing matters for the volume clicks. You must press and release them quickly without holding them down.
Restarting Without Working Buttons
If your buttons are completely broken and the screen is partially frozen, you can rely on accessibility settings.
- Go to Settings and tap Accessibility.
- Select Touch, then tap AssistiveTouch and toggle it on.
- Tap the floating software button that appears on your display.
- Choose Device, then tap More, and select Restart.
Common Mistakes to Avoid
People often struggle with restarting modern iPhones because they hold down the volume buttons instead of tapping them. If you hold down the volume up key along with the side button, you might trigger Emergency SOS instead of a restart menu.
Another frequent mistake is panicking when the Apple logo takes up to 20 seconds to appear during a hard reset. Give the processor time to clear its cache before you assume the phone is broken. If the device remains completely dark, connect it to a power adapter for fifteen minutes—a depleted battery often mimics a frozen system.
Frequently Asked Questions
Does restarting my iPhone 15 delete my data?
No. A standard restart or force restart only clears the temporary RAM. Your photos, messages, apps, and settings remain untouched.
Why won't my iPhone turn off when I slide the power button?
If the screen is frozen, touch inputs won't register on the slider. You must use the button sequence (Volume Up, Volume Down, then hold the Side button) to force a reboot.
How often should I restart my iPhone?
Rebooting your phone once a week clears background glitches, stops memory leaks, and keeps system animations running smoothly.
What should I do if the Apple logo gets stuck on screen?
If your phone loops on the Apple logo during startup, it may have encountered an interrupted update or corrupted system file. You might need to connect it to a computer and open Apple Support utilities to reinstall iOS.
