9 Things to Know About the iPhone 5s iOS 11.2.1 Update

Apple’s iPhone 5s iOS 11.2.1 update is live and today we want to take you through its performance, some of the problems plaguing iPhone 5s users, and what you can expect from Apple and iOS 11 in the future.

For weeks, iPhone 5s users have complained about iOS 11 issues. The iOS 11.2 update eliminated a large number of problems, but reports from iPhone 5s users continued to roll in after its release.

Earlier this month, Apple surprised iPhone owners with an iOS 11.2.1 release. The update didn’t go through a beta and emerged on Wednesday morning for all devices capable of running iOS 11.

Unlike iOS 11.2, the iOS 11.2.1 update is a maintenance upgrade. As such, it comes with a short list of bug fixes.

The iPhone 5s’ latest upgrade comes with bug fixes, but the iOS 11.2.1 update could have a negative impact on your device’s performance. In fact, we’re hearing about various iOS 11.2.1 problems plaguing iPhone 5s users.

The iPhone 5s iOS 11.2.1 update is a small download. If you’re coming from iOS 11.2, it’s a few megabytes. If you’re coming from something older than iOS 11.2, your iOS 11.2.1 update will be larger due to the features and fixes from updates you skipped. They’re baked in.

With all of that in mind, we want to walk you through some of the features you’ll get (and some you won’t) when you upgrade your device to the latest version of iOS 11 for the first time.

Our guide to the iPhone 5s iOS 11.2.1 update also provides you with some information about the iOS 11.2.1 jailbreak, the iOS 11.2.1 downgrade, and a few tidbits about the next iOS 11 update for the iPhone 5s.

Let’s start with a quick look at the update’s performance.

iPhone 5s iOS 11.2.1 Impressions

iPhone 5s iOS 11.2.1 Impressions

Before we get into our impressions of the iOS 11.2.1 update, a few quick notes about the installation and download. 

The iOS 11.2.1 download should only take you a few seconds (or so) if you're connected to a high-speed Wi-Fi network. The installation process will take a little bit longer. It took our device about six minutes to install on our iPhone 5s. 

We didn't run into any installation issues, but there's always a chance the download or install will get stuck. 

For more on the iOS 11.2.1 download and installation process, please take a look at our guide

As for iOS 11.2.1's performance, we've seen some good things and some bad things during our short time with the software. 

We haven't noticed any weird battery drain and Wi-Fi, Bluetooth, cellular data, and GPS are all stable thus far. 

Apps, for the most part, are stable. Chrome continues to crash, but we haven't noticed any major performance problems with our other core apps. (Slack, Asana, Gmail, Twitter, Spotify.)

We're still encountering occasional lag moving around the home screen and opening folders. We've also noticed keyboard lag and stuttering when pulling up for Control Center and pulling down for Notifications.

iOS 11.2.1 has a chance to boost your iPhone 5s' performance. That said, it could also cause serious issues on your device. Make sure you're extremely careful with it. 

For more feedback, take a look at our list of reasons to and not to install iOS 11.2.1 right now


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  4. Stuart

    10/13/2017 at 11:18 pm

    I have iPhone 5s. Battery is draining in half the time with new version on iOS and the phone freezes regularly. I have had three unprompted reboots and device gets hot just before it freezes and reboots.


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