We’re having an excellent experience on iOS 15, but some iPhone SE users are complaining about performance problems including lockups, freezes, general, lag, and random reboots. These issues are extremely common and you’ll find them across Apple’s iPhone lineup.
If your iPhone SE starts to exhibit lag or frequently reboot itself, you don’t need to schedule an appointment to see a Genius at the Apple Store. There’s a very good chance you’ll be able to solve your performance issues from your home in a matter of minutes, seconds even.
In this guide we’ll show you a few ways to fix iPhone SE performance issues should they arise after an iOS 15 update or completely out of the blue.
Restart Your iPhone SE
If you start noticing performance issues like lag and lockups, try restarting your iPhone SE. Hold down the power button, slide to turn it off, leave it off for a minute or so, and then turn it back on to check performance.
You can also try hard resetting the phone which is done by holding down the power button and the home button at the same time until the Apple logo appears.
Update Your iPhone SE
If you’re running an outdated version of iOS 15, consider downloading the latest software to your iPhone SE.
To check what version of iOS 15 you’re currently running, go into Settings, then About, and check under Version. If you aren’t running the latest update, you’ll want to upgrade.
To do that, head into Settings, then General, then Software Update. If a new update is available, you’ll be prompted to download and install new firmware.
Make sure you read reviews before you make your move.
Delete What You Don’t Need
If you’ve owned your iPhone SE for awhile you’ve probably accumulated a ton of data on your device’s internal hard drive. Photos, videos, apps, things of that nature.
Some people are really good about keeping their device’s hard drive clean, others not so much. If you fall into the latter category, it might be time to examine the contents of your phone because clutter can slow down your iPhone.
To do this, head into your iPhone SE’s Settings, go to General, and tap on iPhone Storage. There, you’ll get a detailed look at what’s taking up space on your device.
Go down the list and decide what to keep and what to delete. You’d be surprised how much space Messages and Videos take up on your phone.
If you’re running a newer version of iOS on your iPhone SE, you will also get some personalized recommendations about how to free up space on your device.
Stop Your Auto Downloads
Automatic updates are extremely useful if you’re bad about keeping your apps and services updated with the latest features and fixes. Auto downloads are useful, but they can also slow down your phone.
If you don’t mind manually updating your applications on the App Store, try disabling Automatic Downloads on your iPhone SE and see if you get a boost.
Head into your Settings app, then App Store. Once you’re in there, toggle Apps and App Updates, located in the Automatic Downloads section, off.
You might toggle the other options off as well. You can always turn them back on later.
Clear Browser Cookies & Data
Clearing your browser’s cookies and data will free up memory which could help speed up your iPhone SE.
If you use Safari on your iPhone SE, head into your Settings, then Safari, and then go down to Clear History and Website Data. Give it a tap.
Tapping on this button will remove your browsing history, cookies, and other data from Safari. Your history will also be cleared from any other devices signed into your iCloud account. If that sounds good to you, tap Clear History and Data again.
If you use Google Chrome on your iPhone SE, you’ll want to head into Chrome and tap the three horizontal circles in the bottom right corner.
A popup will appear. From there, tap Settings, then Privacy, and then Clear Browsing Data. You can now select what you wish to delete from your device.
If you’re noticing serious lag on your iPhone SE, you might want to get rid of everything. To do that, select them all and then click Clear Browsing Data.
Kill Background Refresh
If you have Background App Refresh enabled, your iPhone SE will work to keep your apps updated with fresh data. It’s a nice feature, but you probably don’t need it turned on for all of your apps.
If you don’t want or need apps working in the background, turn this feature off. You can shut it off completely or you can run down a list and toggle it off on a case-by-case basis.
To get this done head into Settings, then General, then Background App Refresh, and then toggle Background Refresh off. If you’d prefer to pick and choose, you’ll need to go down your list of apps and toggle them off or on one by one.
Reset All Settings
If none of those remedies work, try resetting your iPhone SE’s settings to their factory defaults. To do that, head into Settings, then General, then Transfer or Reset iPhone, then tap Reset, and select Reset All Settings at the top.
Before you do this, make sure you have your Wi-Fi passwords handy. This will cause your iPhone SE to forget its known connections.
If the current version of iOS 15 is treating your iPhone SE badly, you can try downgrading to an older version assuming one is available.
If you’re fine with dropping down, take a look at our guide to downgrading iOS. It will hold your hand through the entire process.
Wiping your iPhone SE and starting over is a tedious process, but it could have a dramatic effect on your device’s overall performance.
Once you’ve made a proper backup, head into your iPhone SE’s Settings, then General, then Transfer or Reset iPhone, then Reset, then Erase All Content and Settings and get the ball rolling.
Install iOS 15.5 for Better Security
If security is important to you, you'll want to think about installing Apple's iOS 15.5 update right away.
iOS 15.5 brings 27 new security patches to the iPhone and they are essential if you want to keep your device and its data protected. You can learn more about these patches over on Apple's security site.
If you missed iOS 15.4.1, it had just 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 15.5 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 15.5 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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