This is how to go back to iOS 15.3.1 from iOS 15.4.
If you run into iOS 15.4 problems, and you think moving your iPhone back to the previous version of iOS 15 could help, this guide will help you downgrade.
You can only go back to iOS 15.3.1. You can’t go back further than that. The path back to iOS 15.3 and below is closed and it won’t re-open.
It’s also worth noting that you can’t downgrade from iOS 15 to iOS 14 and Apple may not open this option back up.
Initially it looked like Apple would let iPhone users stay on iOS 14 and continue to receive security updates and, perhaps, bug fixes for lingering issues. Unfortunately, those plans seem to have changed.
Apple hasn’t pushed a new version of iOS 14 in months and the most recent version of iOS 14 is gone. Devices running iOS 14.8 and below can only move to the latest version of iOS 15.
This is important because it means there probably won’t be a way to downgrade from iOS 15 to iOS 14 moving forward. The only way this happens is if Apple releases a new version of iOS 14.
Once you downgrade, you can only restore a backup that you made on iOS 15.3.1 so keep that in mind in case you need to restore a backup.
Most users will have a recent backup, but you may lose some items if you aren’t regularly backing up your photos and messages to iCloud.
While this isn’t officially supported, it is easy to do and you don’t lose any support or mess with your iPhone’s warranty.
Here’s what you need to do to go back to iOS 15.3.1 on your iPhone. While you are downgrading you cannot use your phone so you will need to open this on your computer or another device.
If you made an archived backup, you can use that after you restore it. If you are doing this right after the iOS 15.4 release, you might have a iOS 15.3.1 backup available on iCloud or your computer.
Follow these steps to go back to iOS 15.3.1 from iOS 15.4.
This process takes a little while to complete. When it does, you can start fresh or restore a backup made on iOS 15.3.1. Most people will want to install a backup.4 Reasons Not to Install iOS 15.4 & 11 Reasons You Should
Install iOS 15.4 for Better Security
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If security is important to you, you'll want to think about installing Apple's iOS 15.4 update right away.
The iOS 15.4 update has a whopping 36 new security patches on board and they will help protect your phone from harm.
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. You'll get it with iOS 15.4. For more about it, head over to Apple's security page.
If you missed iOS 15.3, you'll 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 15.4 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 15.4 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. The company will add a new App Privacy report feature in the next version of iOS 15 that will tell you when an app has accessed sensitive information.
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