7 Things to Know About the iPhone SE iOS 11.3 Update

The iPhone SE iOS 11.3 update is a milestone upgrade with a long list of changes. It’s an important update for your iPhone SE, but it could cause major problems if you aren’t careful.

Apple’s pushed thirteenth iOS 11 update to the iPhone SE. Unlike its predecessor (iOS 11.2.6), the iOS 11.3 update comes with a mix of new features, security patches, bug fixes, tweaks, and enhancements. iOS 11.2.6 was a much smaller maintenance release.

If your iPhone SE is currently running iOS 11.2.6, you get the shortest list of changes. If you’re currently running iOS 10 or an older version of iOS 11, your iOS 11.3 update will be much larger due to the features and fixes from the iOS updates you skipped. They’re baked into your upgrade.

We’re having a pretty good experience on the newest version of iOS 11, but some iPhone SE users are reporting issues with battery life, connectivity, performance, first and third-party apps.

You can’t predict exactly how the iOS 11.3 update will treat your device so you’ll want to be careful, especially if you’re moving your device to iOS 11 for the first time.

Our iPhone SE iOS 11.3 update walkthrough goes over some of these problems and provides some fixes to those that can’t wait for Apple’s next update.

Our walkthrough also goes over the key features that you’ll get when you upgrade to iOS 11 and it also provides you with some information about Apple’s plans for the future.

We’ve been using the iOS 11.3 update on the iPhone SE for an extended period time and we want to start off with a quick look at its performance.

iPhone SE iOS 11.3 Impressions

iPhone SE iOS 11.3 Impressions

If you're upgrading from the iOS 11.2.6 update, your iPhone SE's iOS 11.3 update requires a large download, 699MB to be exact. If your iPhone SE is connected to a high speed Wi-Fi network, the iOS 11.3 update should take a a minute or two to download.

The iOS 11.3 installation process will take a bit longer than the download. It took about nine minutes on our iPhone SE.

If you're jumping up from an older version of iOS, say iOS 11.2.5, your iOS 11.3 update will be bigger and the installation will take longer.

For more on the iOS 11.3 installation and download time, take a look at our full length walkthrough. It'll prepare you for the installation.

We've been using iOS 11.3 for some time now  and the update is still performing quite well as we push into the month.

We haven't noticed any weird battery drain or issues with connectivity. GPS, cellular data, and our Wi-Fi and Bluetooth connections are strong.

The iPhone SE's iOS 11.3 update feels snappy and we haven't noticed any app crashes, random reboots, or lockups.

We continue to notice occasional keyboard lag and some lag opening up Control Center, but folders open up fast and so do our apps. This mirrors our experience on iOS 11.2.6 and iOS 11.2.5. 

The iOS 11.3 update feels stable right now. That obviously could change down the road and we'll let you know if it does. 

If you're on the fence about an upgrade, take a look at our list of reasons to and not to install the iOS 11.3 update on your phone right now. 


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  4. Altaf

    10/30/2017 at 5:01 am

    I use iPhone6, my wife uses iPhone SE, we have been using Apple products (phone, laptops) since 2 years and liked the quality of hardware and software robustness. But recently both of us have got same issues after the upgrade to new iOS 11.03, battery drains faster, the battery indicator shows sufficient power yet phone switches off, apps crash. Apple has become greedy that it has resorted to this tactics used by Android Phone manufacturers. It has let down all my expectations!


  5. Maggie

    01/10/2018 at 10:44 am

    I have upgraded the SE iphone to 11.2.2 cersion and I’m very upset. This upgrade cases issue with my battery. Consumption of my battery grows 20time more than it was before upgrade. Now I have to charge my iPhone SE every 5 hours even where almost all funcions are off. What have you done and what have you released…this is not a forst time when I got dosapointed on the new releases of this software…


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