5 things to know about the iOS 15.1.1 update

Apple has released a new iOS 15.1.1 update to iPhone users.

iOS 15.1.1 is compatible with the iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, and the company’s new iPhone 13 series. Other iPhone models will stay on iOS 15.1.

Unlike the previous version of iOS 15 (iOS 15.1), iOS 15.1.1 is a small one-time upgrade. It brings an important bug fix for iPhone 12 and iPhone 13 users.

With that in mind, we want to walk you through everything you need to know about Apple’s new iOS 15.1.1 update for iPhone 12 and iPhone 13.

In this walkthrough, we will walk you through iOS 15.1.1 changes, software performance, iOS 15.1.1 issues, iOS 15.1.1 jailbreak status, and more.

We’ll start with some quick thoughts on the performance of iOS 15.1.1.

IOS 15.1.1 review

If your iPhone is currently running iOS 15.1, you will see the smallest iOS 15.1.1 download size.

For iOS 15.1 users, the iOS 15.1.1 download is quite large. iOS 15.1.1 represents around 360MB of download for iPhone 12 Pro users upgrading from the previous version of iOS 15.

The exact iOS 15.1.1 download size depends on your iPhone model and what version of iOS it is currently running. So if your iPhone is running an older version of iOS, you will see a bigger download because your iOS 15.1.1 update includes changes from iOS updates that you skipped.

If you are upgrading from iOS 15.1, the installation process should take less than 10 minutes. Installation took about seven minutes on an iPhone 12 Pro that was previously running iOS 15.0.2.

For more information on downloading and installing iOS 15.1.1, see our guide.

We’ve been using iOS 15.1.1 on the iPhone 12 and iPhone 13 models for a short time and here’s what we’ve learned about the software’s performance so far:


  • The battery life is currently stable.
  • Wi-Fi connectivity is fast and reliable.
  • Bluetooth is functioning normally.
  • Both GPS and cellular data are stable.

Application performance

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


  • iOS 15.1.1 is as fast as iOS 15.1.

If you are experiencing any bugs or performance issues on iOS 15.1 or an older version of iOS, you might want to install the iOS 15.1.1 update on your iPhone right now.

If you need help making a decision, please see our reasons for whether or not to install the latest version of iOS 15.

IOS 15.1.1 issues

iOS 15.1.1 is already causing problems for some iPhone users. Some of these issues are new, others have been carried over from iOS 15.1 and older versions of iOS.

The current list includes installation issues, UI lag, Exchange issues, issues with proprietary and third-party apps, touchscreen issues, issues with Touch ID and Face ID, issues with charging and stuttering.

If you’re having an issue with iOS 15.1.1, check out our list of fixes for the most common iOS 15 issues. We’ve also posted some tips that might help you improve your phone’s performance and some tips that might help you fix poor iOS 15 battery life.

Apple is currently signing on to iOS 15.1, which means you can roll back your phone’s software to the previous version of iOS 15 if iOS 15.1.1 starts causing problems.

You cannot downgrade to a version earlier than iOS 15.1. Keep this in mind if you have good experience with iOS 15.0.2 or earlier. Once you upgrade to iOS 15.1.1, you won’t be able to go back.

To learn more about the downgrade process, see our guide.

IOS 15.1.1 Update: What’s New

iOS 15.1.1 doesn’t have any new features or security fixes on board. Instead, the software has a single bug fix for iPhone 12 and iPhone 13 models.

Apple claims that the software improves call deletion performance on iPhone 12 and iPhone 13. So if you are having trouble with dropped calls on iOS 15.1 or earlier, you should probably install this update.

IOS 15.1.1 Jailbreak

The developer teams behind the Checkra1n and unC0ver jailbreak tools have released versions that are compatible with newer versions of iOS 14, but only Checkra1n (currently in beta) is compatible with iOS 14.5. They do not yet support 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. This is great news if you’ve been waiting to jailbreak your new phone. Unfortunately, it is only compatible with versions up to iOS 14.3.

There is no way to downgrade your phone’s software to iOS 14.5 or earlier versions of iOS, which means you’re out of luck if you upgrade or have already performed one. upgrade to newer iOS software.

And after

Apple has confirmed that a new version of iOS 15 and iOS 15.2 is currently in beta testing ahead of its public release. The company has yet to confirm a specific release date, but it is expected to drop before the end of the year.

If your problems on iOS 15.1.1 are really serious or if you just want to try new features, you can download the beta version of iOS 15.2 on your iPhone right now.

To learn more about iOS 15.2 and the beta, take a look at our walkthrough. To learn more about the iOS 15.2 release date, check out our guide.

4 reasons not to install iOS 15.1 and 11 reasons you should

Install iOS 15.1.1 / iOS 15.1 for better security

Install iOS 15.1.1 / iOS 15.1 for better security

If security is important to you, consider installing Apple’s iOS 15.1 update immediately.

iOS 15.1 contains important security fixes and they will help protect your phone. You can read more about them on Apple’s website.

Apple’s iOS 15.1.1 update for iPhone 12 and iPhone 13 does not include any known on-board security upgrades. That said, if you missed iOS 15.1, you’ll get its security fixes when you upgrade to iOS 15.1.1.

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

iOS 15.0 has also brought a lot of security fixes to your iPhone. If you are upgrading from iOS 14 and are interested in exactly what these improvements are, you can find out more on Apple’s security website.

If you skipped iOS 14.8 or any earlier version of iOS, you will also get the security fixes from these updates with your iOS 15.1.1 / iOS 15.1 update.

In addition to these fixes, iOS 15 comes with security and privacy upgrades, including Siri improvements. Requests to Siri are now processed on the device itself using Neural Engine. It makes it more secure.

If you are an Apple Card user, you will now get a regularly changing security code to use when making transactions online.

Apple has also included a built-in authenticator similar to Google Authenticator. This will allow you to generate verification codes for improved login security under your passwords.

There is also an email feature that hides your IP address. The company will add a new app privacy reporting feature in the next version of iOS 15 that will tell you when an app has accessed sensitive information.

About Nereida Nystrom

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