Congratulations on your new iPhone 15! It’s a sleek and powerful device that can do a lot, but it’s important to know the basics before you can start using it. One of the most basic things you need to learn is how to turn it on.
This article will walk you through the steps of turning on your iPhone 15, whether it’s brand new or you’re just restarting it. We’ll also cover some troubleshooting tips in case your iPhone won’t turn on.
Quick Answer: How to Power on an iPhone 15
Long-press the Side button on your iPhone 15 until you see the Apple logo. If the screen remains black after pressing the Side button for an extended period of time, your iPhone’s battery may be depleted, or, less likely, your iPhone may be in DFU mode. The instructions in subsequent paragraphs will show you how to exit DFU mode on the iPhone 15.
How to Power Off an iPhone 15
The iPhone 15 lineup can be powered off in a number of ways. The quickest way to turn off the iPhone 15 is to simultaneously long-press the Side and Volume buttons until the slide to power off slider appears. Simply slide your finger to power off your iPhone 15 once it appears.
Another way to turn off your iPhone 15 is to go to Settings General and scroll to the bottom of the page. When you get there, you’ll notice a Shut Down button. Tap Shut Down, and then use the slider at the top of the screen to power off.
Why Is It Important to Know How to Turn On Your iPhone 15?
There are a few reasons why it’s important to know how to turn on your iPhone 15.
- First, it’s the first step in using your new device. You can’t do anything with your iPhone if it’s not turned on.
- Knowing how to turn on your iPhone is important for troubleshooting purposes. If your iPhone is frozen or not working properly, one of the first things you should try is restarting it. Restarting your iPhone can often fix minor problems.
- Finally, knowing how to turn on your iPhone is important for safety reasons. If you’re ever in an emergency and need to call 911, you’ll need to be able to turn on your iPhone quickly and easily.
How to Turn On Your iPhone 15
To turn on your iPhone 15, simply press and hold the side button until you see the Apple logo. The side button is located on the right side of the iPhone, below the volume buttons.
If your iPhone is brand new, you’ll go through a setup process after it turns on. This process will help you set up your Apple ID, iCloud, and other features.
How to Force Restart iPhone 15
If your device is hanging or acting strangely, performing the following commands in rapid succession will force restart your iPhone 15.
- Step 1: Quickly press and release the Volume Up button.
- Step 2: Quickly press and release the Volume Down button.
- Step 3: Long-press the Side button on the iPhone 15 until the screen goes black.
If everything goes well, the iPhone 15 will restart and the Apple logo will appear. After a few moments, the phone should reboot to the iOS Lock Screen.
How to Enter Recovery Mode on iPhone 15
With a few exceptions, entering recovery mode on your iPhone 15 is similar to forcing a restart. Connect your iPhone 15 to your Mac using a USB-C to USB-C cable to enter recovery mode. You can use the USB-C cable that came with your iPhone 15 to do this.
If this is your first time connecting your iPhone 15 to your Mac, you must tap the Trust button and enter your iPhone’s passcode to complete the pairing. If you have a more recent version of macOS, you must also allow the device’s USB connection to your Mac by clicking the “Allow” prompt that appears on macOS. Then, in the Sidebar, open Finder and select your iPhone under the Location heading. To complete the connection, click the Trust button in the Finder.
Once connected to your Mac, follow these steps in quick succession:
- Step 1: Quickly press and release the Volume Up button.
- Step 2: Quickly press and release the Volume Down button.
- Step 3: Long-press the Side button until the connect-to-computer glyph appears on the display of your iPhone 15.
On your Mac, a Finder window should appear indicating that your iPhone has been placed in recovery mode. macOS will then give you the option to either update to the most recent version of iOS while keeping your data, or restore iOS, which will perform a fresh install of the most recent iOS version.
How to Exit Recovery Mode on iPhone 15
Long-press the iPhone 15’s Side button until the connect-to-computer glyph disappears. Your device will restart and return to the Lock Screen.
How to Enter DFU Mode on iPhone 15
To reinstall iOS, you may need to put your iPhone 15 into Device Firmware Upgrade (DFU) mode in some rare cases. You’ll need to connect your iPhone 15 to a computer using a USB-C to USB-C cable, just like in recovery mode. If you’re connecting your iPhone to your Mac for the first time, you’ll need to go through the trust process described in the recovery mode section above to establish a pairing with your Mac.
Do the following steps in quick succession to enter DFU mode:
- Step 1: Quickly press and release the Volume Up button.
- Step 2: Quickly press and release the Volume Down button.
- Step 3: Hold down the Side button for ten seconds.
- Step 4: While long-pressing the Side button, long-press the Volume down button for 5 seconds.
- Step 5: Release the Side button while continuing to long-press the Volume down button for an additional 10 seconds.
Unlike recovery mode, no connect-to-computer dialogue is displayed when entering DFU mode. After entering DFU mode, your iPhone 15 display will remain black. If you see the Apple logo, the process was not completed correctly.
How to Exit DFU mode on iPhone 15
- Step 1: Quickly press and release the Volume Up button.
- Step 2: Quickly press and release the Volume Down button.
- Step 3: Long-press the Side button until the Apple logo appears. Your iPhone 15 will boot back to the Lock screen.
How to Temporarily Disable Face ID on iPhone 15
To temporarily disable Face ID, simultaneously long-press the Side button and either Volume button until the slide to power off slider is displayed. To reactivate Face ID, you’ll need to unlock your iPhone 15 with your device passcode.
Using Emergency SOS with iPhone 15
Triggering Emergency SOS will contact emergency authorities. Only use this feature in an actual emergency. You can enable Emergency SOS discretely without taking your iPhone 15 out of your pocket.
There are three ways to trigger Emergency SOS on iPhone 15:
- Long-press the Side button and one of the Volume buttons simultaneously until the slide to power off slider is displayed. To activate Emergency SOS, use the Emergency SOS slider.
- Visit Settings → Emergency SOS, and enable the Call with Side Button toggle. This feature lets you trigger Emergency SOS by quick-pressing the Side button 5 times in a row.
- There is also a Call Quietly option in Settings → Emergency SOS. Enabling this feature will silence warning alarms, flashes, and Voice Over audio for a more discrete trigger option.
Finally, there is the Crash Detection toggle, which will cause your iPhone to automatically call emergency services if it detects that you’ve been in a car crash.
How to Disable Find My When Powering Down iPhone 15
iOS includes a feature that allows your iPhone 15 to continue to be tracked via Find My even when powered down. To use this feature, you’ll need to have your iPhone 15 logged in to the Find My network, and have location services enabled.
To disable the Find My feature when powering down your iPhone 15 do the following:
- Step 1: Long-press the Side button and either of the Volume buttons simultaneously until the the slide to power off slider appears.
- Step 2: Tap the iPhone Findable After Power Off message.
- Step 3: Tap the Temporarily Turn off Finding button on the dialogue box and enter your device passcode.
- Step 4: Use the slide to power off slider to power down your iPhone 15 with finding disabled.
iPhone 15 Pro and iPhone 15 Pro Max have an Action button in place of the Ring/Silent switch. You can choose which function you want the Action button to perform when you press it. Because the button is so accessible, it’s useful for actions you perform often. (The location of the Action button is shown below.)
How do I get my new iPhone to turn on?
Press and hold the device’s power button until you see the Apple logo. The phrase “Hello” will then appear in a variety of languages. Follow the onscreen instructions to get started.
Troubleshooting Tips
If your iPhone won’t turn on, there are a few things you can try:
- Make sure that the battery is charged. If your iPhone is completely dead, it won’t turn on.
- Try restarting your iPhone. To do this, press and hold the side button and either volume button until you see the Apple logo.
- If your iPhone still won’t turn on, try connecting it to a charger and waiting a few minutes. Then, try turning it on again.
- If your iPhone is still frozen or won’t turn on, contact Apple support for help.
Conclusion
Turning on your iPhone 15 is a simple process, but it’s an important one to know. By following the steps in this article, you’ll be able to turn on your iPhone quickly and easily, no matter what the situation is.
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