How to Fix iPhone 12 Boot Loop (Troubleshooting Tutorial)

  1. Published on Sep 25, 2021
  2. Updated on Sep 25, 2021
  3. No Comments

A boot loop issue on an iPhone 12 is likely due to software-related problems. It’s actually a problem faced by many smartphones, even the most advanced ones.

No matter what causes it, you can still fix the issue in a number of ways. We understand the struggle and how costly it is to have your iPhone 12 fixed at a shop.

So, in this guide, we've compiled some of the most efficient and cost-effective ways to fix the reboot loop problem on an iPhone 12.

Let’s get started!

Possible Reasons for iPhone 12 Boot Loop

If your iPhone 12 is persistently turning on and off, something is messing with its standard process.

Perhaps there are bugs or malwares residing in the operating system (OS), or in third-party applications. This commonly happens with jailbroken phones.

Another possible reason is a faulty battery or chipset. Insufficient power may cause your phone to restart repeatedly. In this case, your device requires hardware diagnostics.

It can be difficult to pinpoint the cause of the problem, but the methods below may be able to help you resolve it completely whatever the cause may be.

1. Charge Your iPhone 12

While charging your iPhone 12 may not solve the reboot loop issue, it helps you determine whether the problem is hardware- or software-related. This allows you to easily rule out either possibility.

Try to plug in your device to a power socket and check if the boot loop issue still persists. If it stops rebooting while charging, it’s likely that your device has a faulty battery. Consider making a trip to the nearest Apple service center in that case.

If your iPhone 12 is still restarting even while charging, there’s a big possibility that the problem is caused by software issues. In this case, the succeeding methods may be able to repair it.

Plug the iPhone into charger

2. Force Restart Your Device

A common fix to minor iOS problems is a force restart. This refreshes all the system components of your iPhone 12 and it also restarts all background processes.

To perform a force restart in iPhone 12:

  1. First, you need to quickly press and release the volume up button.
  2. After releasing volume up, immediately press and release the volume down button.
  3. At this point, hold down the side button and wait until you see the Apple logo on your screen.
  4. Finally, release the side button and check if the problem is gone.

Force Restart iPhone 12

3. Fix iPhone Boot Loop with TinyFix System Repair

In some cases, rogue aps and corrupted system files can perform buggy operations in your iPhone 12, leading to processing problems like boot loops.

For this instance, we recommend using a repair tool called TinyFix to fix the trouble. TinyFix is an iOS system repair that solves almost all sorts of system breakdowns for iPhone 12  such as device freezing, not turning on, stuck on black screen, without losing data.

In order to use TinyFix, you need to access your computer and perform these steps:

  1. First of all, download and install TinyFix into your Mac or PC.
  2. Once downloaded, locate the application and launch it.
  3. Next, connect your iPhone 12 to the computer using a USB cable.
  4. From TinyFix’s home screen, click iOS System Repair and choose Standard Repair Mode.
  5. Next, choose the appropriate iOS version on the System Version drop-down button and click Download. Wait for a while as TinyFix will download the firmware for your device.
  6. Once the firmware has been downloaded, click on Fix Now and the repair process will begin shortly.
  7. Monitor the process on TinyFix’s screen. When it is done, check your phone if the boot loop problem is no longer happening.

Standard Repair Mode

4. Update iOS, If Possible

Boot loops can also be a consequence of unfinished updates or outdated OS. With this possibility, try updating your iOS.

As your phone is not working at the moment, we'll show you how to do it using iTunes or Finder on your computer instead.

Just follow these steps:

  1. Connect your iPhone 12 to your computer using its USB lightning connector and launch the iTunes application.
  2. From the iTunes or Finder interface, find and click the iPhone icon.
  3. Afterwards, click the Check for Update button under Settings Summary. If there’s an update, click on Download and Update and follow the on-screen instructions to update your phone.

check for an iOS update

5. Restore iPhone 12 in Recovery Mode or DFU Mode

Another solution to consider is to restore your iOS from its previous state. Keep in mind that you can only do this if you have previously created a backup. You will also need to access a computer for this method.

To perform a standard iOS Restore:

  1. Start the iTunes app on your computer and connect your iPhone with a USB cable.
  2. With the iTunes app already open, locate and click the iPhone icon.
  3. Next, navigate to Summary and look for the Backups section.
  4. Under Backups, click Restore Backup and wait until the restore process completes.

perform a standard iOS Restore

If restoring your iPhone 12 the standard way is not possible or ineffective, you may need to start the device in Recovery Mode or DFU mode and, again, restore it using iTunes.

Here’s how to do a Restore with Recovery Mode:

  1. Open your iTunes app and connect your iPhone to your computer with a USB Cable.
  2. Press and release the volume up button.
  3. Then, press and release the volume down button.
  4. Now, press and hold down the side button until you see the Recovery Mode screen on your iPhone.

do a Restore with Recovery Mode

Here’s how to do Restore with DFU Mode:

  1. Open your iTunes app and connect your iPhone to your computer with a USB Cable.
  2. Press and release the volume up button.
  3. Then, press and release the volume down button.
  4. Now, press and hold down the side button until the iPhone screen turns black.
  5. At this point, hold down the volume down button while still holding down the side button for 5 seconds.
  6. Then, release the side button only and keep holding the volume down button until iTunes detects your iPhone. If the Apple logo appears on the iPhone, repeat the steps.

 restore iPhone in DFU mode


That’s pretty much it when it comes to rectifying the boot loop problem on an iPhone 12. We hope we are able to help you with your iPhone dilemma. Let us know if we can be of any assistance by reaching out to us through the comments section.

J. Robertson Macaulay D. Young

Mako is a technical freelance writer with a passion for all things tech. Whether you're wondering about how to fix your iPhone or trying to get something to work in your settings, Mako is your go-to for professional help. He loves writing, testing solutions, and most of all, making sure his research is factually accurate.
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