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5 Things to Know About the iOS 15.4.1 Update



Apple’s pushed an iOS 15.4.1 update and it brings some extremely important changes to iPhone users around the world.

iOS 15.4.1 is compatible with all iOS 15-powered phones which includes the iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE 2, iPhone SE 3, iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, and the iPhone 13 series.

Unlike iOS 15.4, the previous version of iOS 15, iOS 15.4.1 is a small point upgrade. That being said, it delivers important bug fixes to the iPhone including one that should solve abnormal battery drain issues.

With that in mind, we want to take you through everything you need to know about Apple’s latest iOS 15 update for iPhone.

In this walkthrough we’ll take you through iOS 15.4.1’s changes, the software’s performance, iOS 15.4.1 problems, the iOS 15.4.1 jailbreak status, and more. We’ll start with some thoughts on iOS 15.4.1’s performance thus far.

iOS 15.4.1 Review

If your iPhone is currently running iOS 15.4, you’ll see the smallest iOS 15.4.1 download size.

For iOS 15.4 users, the iOS 15.4.1 download is fairly small. It’s right around 300MB for iPhone 12 Pro users moving up from the previous version of iOS 15. You can expect a similar size for other iPhone models.

Keep in mind, the exact size of the iOS 15.4.1 download depends on your iPhone model and the version of iOS it’s currently running.

If your iPhone is running an older version of iOS, you may see a bigger download because your update includes the changes from any iOS updates you skipped.

If you’re moving up from iOS 15.4, the installation process should take 10 minutes or less to complete. It took about seven minutes to install on an iPhone 12 Pro.

We’ve been using iOS 15.4.1 on a few different iPhone models for several days now and here’s what we’ve learned about the software’s performance thus far:


  • Battery life is stable.
  • Wi-Fi connectivity is fast and reliable.
  • Bluetooth is working normally.
  • GPS and cellular data are both stable.

App Performance

  • Third-party apps including Netflix, Dark Sky, Twitter, Slack, Asana, Gmail, Chrome, and Spotify are working fine at the moment.
  • First party apps like Safari and Podcasts are also stable.


  • iOS 15.4.1 feels as fast as iOS 15.4.

If you’ve been dealing with bugs and/or performance issues on iOS 15.4 or an older version of iOS, you should probably install the iOS 15.4.1 update on your iPhone right now.

If you need help making a decision about whether or not to make the jump up to iOS 15.4.1, please check out our reasons to, and not to, install the software right now.

iOS 15.4.1 Problems

The iOS 15.4.1 update is causing problems for some iPhone users. Some of these problems are brand new while others have carried over from iOS 15.4 and older versions of iOS 15.

The current list of problems includes installation issues, issues with first and third-party apps, UI lag, Exchange issues, issues with Touch ID and Face ID, and abnormal battery drain.

If you encounter a problem on iOS 15.4.1, have a look at our list of fixes for the most common iOS 15 problems. We’ve also released some tips that could help you improve your phone’s performance and some tips that could help fix bad iOS 15 battery life.

Apple has stopped signing on iOS 15.4 which means you can’t drop your iPhone’s software back to the previous version of iOS 15 if iOS 15.4.1 starts causing problems on your device. You can’t downgrade to anything older than iOS 15.4 either.

Keep this in mind if you’re having a good experience on iOS 15.4 or older. Once you make the move to iOS 15.4.1, you won’t be able to get back.

For more on the downgrade process, check out our guide.

iOS 15.4.1 Features

Apple’s point updates (x.x.x) typically bring under-the-hood improvements to iPhone users and that’s exactly what iOS 15.4.1 has on board. Here’s the official iOS 15.4.1 change log:

Bug Fixes

  • Fix for an issue where battery may drain more quickly than expected after updating to iOS 15.4.
  • Fix for an issue where braille devices may become unresponsive while navigating text or displaying an alert.
  • Fix for an issue where Made for iPhone hearing devices may lose connection within some third-party apps.

iOS 15.4.1 bring a new security patch to iPhone as well. If you want to learn more about it head on over to Apple’s official security site.

iOS 15.4.1 Jailbreak

The developer teams behind the Checkra1n and unC0ver jailbreaking tools have released versions that are compatible with newer versions of iOS 14, but only Checkra1n is compatible with iOS 14.5.

Unfortunately, the tools don’t support iOS 15.4.1, iOS 15.4, iOS 15.3.1, iOS 15.3, iOS 15.2.1, iOS 15.2, iOS 15.1.1, iOS 15.1, iOS 15.0.2, iOS 15.0.1, iOS 15.0, iOS 14.8, iOS 14.7.1, iOS 14.7, iOS 14.6, or iOS 14.5.1.

The latest version of unC0ver is compatible with newer iPhones including the iPhone 12 series. That’s big news if you’ve been waiting to jailbreak your new phone. Unfortunately it’s only compatible with versions up to iOS 14.3.

There’s no way to downgrade your phone’s software to iOS 14.5 or older versions of iOS which means you’re out of luck if you upgrade, or you already upgraded to newer iOS software.

What’s Next

Apple’s confirmed a new version of iOS 15 and iOS 15.5 is currently in beta testing ahead of its public release.

iOS 15.5 is a milestone release, but it looks like it will be a fairly minor one. That said, it should still carry a mix of new features, bug fixes, and security patches.

The company hasn’t confirmed a specific iOS 15.5 release date and we expect it to stay in beta for a bit longer while Apple works out the kinks. As of right now, we expect the official release to come sometime in May.

If your problems are really bad, or you just want to try new software, you might try downloading the iOS 15.5 beta onto your iPhone right now.

For more on iOS 15.5 and the beta, have a peek at our walkthrough. For more about the upcoming iOS 15.5 release date, check out our guide.

4 Reasons Not to Install iOS 15.8.2 & 10 Reasons You Should

Install iOS 15.8.2 for Better Security

Install iOS 15.8.2 for Better Security

If security is important to you, and you missed older versions of iOS 15, you'll want to think about installing Apple's iOS 15.8.2 update right away.

iOS 15.8.2 doesn't have any security updates on board. But, if you missed prior versions of iOS 15, you'll get their patches when you upgrade.

iOS 15.8.1 wasn't a big update, but it did have a pair of security patches on board. They're important and they will help protect your device from harm. 

iOS 15.8 had an important security patch on board. 

iOS 15.7.9 brought a new security patch with it. It addressed an issue where hackers could gain access via PassKit (Apple Wallet) image. For more information, head over to Apple's website.

iOS 15.7.8 had 10 security patches on board. These patches are essential if you want to keep your device and its data safe from harm. Apple's outlined the changes in detail and they're worth a look.

iOS 15.7.7 brought three security patches to iPhone models lingering on iOS 15. For more about them, head over to Apple's security site.

iOS 15.7.6 had several security updates on board. For more information about those patches, head here.

The iOS 15.7.5 update patched up actively exploited vulnerabilities making it an extremely important upgrade for your iPhone. To learn more about the patches, check out Apple's guide.

iOS 15.7.4 brought important security fixes to older iPhone models as well. If you want to learn more about these changes, check out Apple's guide.

iOS 15.7.3 also brought a batch of security patches to iPhone. You can learn more about these changes right here.

iOS 15.7.2 brought numerous patches along with it. For more about them, head over to Apple's website for more details.

iOS 15.7.1 update brought 17 security patches with it while iOS 15.7 delivered 11 security patches to iPhone. If you want a look at the details, head over to Apple's security site for more information.

If you missed iOS 15.6.1, it had two security patches on board. You can read more about the pair on Apple's website.

If you missed Apple's iOS 15.6 update, it had 30+ security upgrades on board. You can learn more about them right here.

If you missed iOS 15.5 it brought 27 new security patches to the iPhone. You can learn more about these patches over on Apple's security site.

If you missed iOS 15.4.1, it had one new security patch on board. You can read more about it over on Apple's website

If you missed the iOS 15.4 update, it had a whopping 36 new security patches on board. If you want to learn more about these patches, head on over to Apple's security site for the particulars

If you missed iOS 15.3.1, it had one security patch on board. For more about it, head over to Apple's security page

If you missed iOS 15.3, you'll also get its patches with your upgrade. iOS 15.3 brought 10 new security patches to iPhone users. If you're interested in the details, you can read more about them right here.

If you missed iOS 15.2.1, you'll get its security patch with your upgrade. You can learn more about the change over on Apple's website

If you missed Apple's iOS 15.2 update, you'll get its 30+ security patches with your upgrade. You can read all about them over on the company's security site

iOS 15.2 also included some important upgrades to privacy. The software brought the company's App Privacy Report to Settings.

This lets you see how often your apps have accessed your location, photos, camera, microphone, contacts and more during the last seven days. You can also see their network activity. 

In addition, iOS 15.2 brought Apple's communication safety features for kids. You'll find these features in the Messages app, in Siri, in Spotlight, and in Search. 

If you missed iOS 15.1, iOS 15.8.2 will bring its security patches to your iPhone. You can read more about them on Apple's website

If you missed iOS 15.0.2 you'll also get its security patch with your upgrade. You can learn more about it right here.

iOS 15.0 also brought numerous security patches to your iPhone. If you'll be moving up from iOS 14 and you're interested in the exact nature of these improvements, you can read about them over on Apple's security website.

Apple's updated its website with new information about iOS 15's batch of security patches. The company now says the software patched up an issue that could have exposed a user's private Apple ID information and in-app search history.

It also says iOS 15 patched up an issue that allowed apps to override Privacy preferences.

If you skipped iOS 14.8 or any older versions of iOS, you'll get the security patches from those updates with your iOS 15.8.2 update as well. 

In addition to those patches, iOS 15 comes with some security and privacy upgrades including improvements to Siri. Requests made to Siri are now processed on the device itself using Neural Engine. This makes it more secure. 

If you're an Apple Card user, you'll now get a security code that changes regularly to use when you make online transactions. 

Apple's also included a built-in authenticator that's similar to Google Authenticator. This will let you generate verification codes for enhanced sign-in security under your Passwords.

There's also a Mail feature that hides your IP address. 

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