Quick Answer
Force restart your iPhone (press Volume Up, Volume Down, then hold Side button for 10+ seconds). If that doesn't work, connect to a computer and use Recovery Mode to reinstall iOS.
Why This Happens
You're staring at a glowing Apple logo that won't go away. Most commonly this happens right after an iOS update—like iOS 17.6.1—gets interrupted or corrupted. It can also occur if your iPhone runs out of battery mid-update, or if the storage was nearly full. The system tries to boot but hits a broken kernel or system file, so it loops back to the logo. This isn't a hardware death sentence. In most cases, the data on the phone is still intact. You just need to get the software to cooperate again.
Fix 1: Force Restart (Takes 30 Seconds)
This is the first thing to try. It's not a regular restart—it cuts power completely and forces a fresh boot. For iPhone 8 or later (which covers all iPhones that run iOS 17):
- Press and quickly release the Volume Up button.
- Press and quickly release the Volume Down button.
- Press and hold the Side button (the one on the right).
- Keep holding for 10–15 seconds, even after the Apple logo appears, until you see the home screen or the 'Slide to Power Off' slider.
What to expect: If the force restart works, you'll see the lock screen within about 30 seconds of holding the Side button. If the logo just reappears, you're still in a boot loop—move to Fix 2.
Fix 2: Put iPhone in Recovery Mode and Reinstall iOS
This is the real fix for a corrupted update. It reinstalls the iOS system files without erasing your personal data. You'll need a computer with the latest version of iTunes (Windows) or Finder (macOS Catalina or later).
First, make sure your iPhone has some battery left—if it's been looping for hours, plug it into a power source for at least 10 minutes before starting.
- Connect your iPhone to the computer using a genuine Apple Lightning or USB-C cable. If a dialog asks to 'Trust This Computer,' tap Trust—but if the screen is frozen, you can't tap it. That's fine, the computer should still recognize the device.
- On the computer, open Finder (macOS) or iTunes (Windows).
- Now put the iPhone into recovery mode. Press and release Volume Up, press and release Volume Down, then press and hold the Side button. Do not release the Side button until the next step.
- While holding the Side button, the computer should show a popup saying 'There is a problem with the iPhone that requires it to be updated or restored.' Keep holding until you see this popup. If the iPhone shows a screen with a laptop icon and a cable, you're in recovery mode—release the Side button now.
- In the popup, click Update. This will download and reinstall iOS without erasing your data.
What to expect: The download takes 5–15 minutes depending on your internet speed. After the update finishes, the iPhone will restart. You should see the lock screen with all your apps and photos intact. If the update fails and you get an error like 'error 2005' or '4013', move to Fix 3.
Alternative Fix: Erase and Restore (Last Resort)
If the Update option keeps failing, you're left with Restore. This wipes the phone and installs a fresh copy of iOS. Only do this if you have an iCloud backup or you're okay losing everything. I hate recommending this, but sometimes a corrupted partition can't be repaired in place.
- Repeat the recovery mode steps above, but this time click Restore instead of Update.
- When the restore finishes, set up your iPhone. On the 'Apps & Data' screen, choose Restore from iCloud Backup or Restore from Mac/PC if you have a local backup.
What to expect: The restore erases the phone, then reinstalls iOS. It takes 10–20 minutes. After setup, your phone will download apps and photos from the cloud—that can take hours if you have a large library.
What If Your Phone Is Not Recognized at All?
Sometimes the computer won't see the iPhone because the cable is bad or the port is dirty. Try a different cable—preferably an Apple OEM one, not a $3 store brand. Also try a different USB port on the computer, ideally a rear port on a desktop. If you're on a Mac, use a USB-C port directly.
Prevention: Stop the Boot Loop From Happening Again
The most common trigger is updating iOS with less than 5GB of free storage. Before updating, go to Settings > General > iPhone Storage and make sure you have at least 5GB free. Also, plug your phone into power during the update—a dead battery mid-update is a boot loop factory. And if you're on a beta version of iOS, don't be surprised when it breaks; betas are unstable by design.
If you ever get stuck on the logo in the future, skip the panic. Force restart first, then recovery mode. Nine times out of ten, that Update button saves your data.