How to fix bad iPhone SE performance

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We have an excellent experience on iOS 15, but some iPhone SE users complain about performance issues including freezing, freezing, general, lag, and random reboots. These problems are very common and you will find them all over Apple’s iPhone line.

If your iPhone SE starts to lag or reboot itself frequently, you don’t need to make an appointment to see a Genius in the Apple Store. Chances are you can fix your performance issues from your home in minutes or seconds.

In this guide, we’re going to show you a few ways to fix iPhone SE performance issues if they happen after an iOS 15 update or out of nowhere.

Restart your iPhone SE

If you start to notice performance issues like lag and freezing, try restarting your iPhone SE. Press and hold the power button, slide to turn it off, leave it off for a minute or so, then turn it back on to check performance.

You can also try resetting the phone by pressing and holding the power and home buttons 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If you’re running an outdated version of iOS 15, consider downloading the latest software to your iPhone SE.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 which version of iOS 15 you are currently using, go to Settings, then About and check under Version. If you’re not running the latest update, you’ll want to upgrade.

To do this, go to Settings, then General, then Software Update. If a new update is available, you will be prompted to download and install new firmware.

Make sure to read reviews before making your move.

Delete what you don’t need

If you’ve owned your iPhone SE for a while, you’ve probably accumulated a ton of data on your device’s internal hard drive. Photos, videos, apps, that sort of thing.

Some people are really good at keeping their device’s hard drive clean, others not so much. If you fall into the latter category, it might be time to investigate your phone’s contents, as clutter can slow down your iPhone.

To do this, go to your iPhone SE settings, go to General and tap iPhone Storage. There you get a detailed overview of what is taking up space on your device.

Go through the list and decide what to keep and what to remove. You’d be amazed at how much space Messages and Videos takes up on your phone.

If you’re running a newer version of iOS on your iPhone SE, you’ll also get some personalized recommendations on how to free up space on your device.

Stop your automatic downloads

Automatic updates are very useful if you are bad at keeping your apps and services up to date with the latest features and fixes. Automatic downloads are useful, but they can also slow down your phone.

If you don’t mind manually updating your apps in the App Store, try turning off Automatic Downloads on your iPhone SE and see if it gives you a boost.

Go to your Settings app and then to the App Store. Once there, turn off Apps & App Updates in the Automatic Downloads section.

You can also disable the other options. You can always turn them back on later.

Clear browser cookies and data

Clearing your browser’s cookies and data frees up memory, which could speed up your iPhone SE.

If you are using Safari on your iPhone SE, go to Settings, then Safari and go to Clear History and Website Data. Give it a tap.

Tapping this button will delete your browsing history, cookies, and other data from Safari. Your history will also be cleared from all other devices signed into your iCloud account. If that sounds good to you, tap Clear History and Data again.

If you are using Google Chrome on your iPhone SE, you need to go to Chrome and tap the three horizontal circles in the lower right corner.

A popup will appear. From there, tap Settings, then Privacy, then Clear Browsing Data. You can now select what you want to remove from your device.

If you notice serious lag on your iPhone SE, you may 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 new data. It’s a nice feature, but you probably don’t need to enable it for all your apps.

If you don’t want or need apps running in the background, disable this feature. You can disable it completely or you can go through a list and disable it on a case by case basis.

To get this done, go to Settings, then General, then Background App Refresh and disable Background Refresh. If you’d rather pick and choose, you’ll have to go through your list of apps and enable or disable them one by one.

Reset all settings

If none of these solutions work, try factory resetting your iPhone SE. To do this, go to Settings, then General, then Transfer or Reset iPhone, then tap Reset and select Reset all settings at the top.

Make sure you have your Wi-Fi passwords handy before doing this. This makes your iPhone SE forget the known connections.


If the current version of iOS 15 treats your iPhone SE badly, you can try downgrading to an older version, assuming one is available.

If you’re okay with losing weight, check out our guide to downgrading from iOS. It will hold your hand during the whole process.

Start over

Erasing your iPhone SE and starting over is a tedious process, but it can have a dramatic effect on the overall performance of your device.

Before taking this step, make sure your data has been properly backed up via Finder/iTunes or Apple’s iCloud service. That way, if you don’t see any improvements, you can easily restore from a backup.

Once you’ve properly backed up, go to your iPhone SE’s settings, then General, then iPhone transfer or reset, then reset, then erase all content and settings and get the ball rolling.

4 reasons not to install iOS 15.4.1 and 11 reasons why you should

Install iOS 15.4.1 for better security

Install iOS 15.4.1 for better security

If security is important to you, then you should definitely consider installing Apple’s iOS 15.4.1 update right away.

iOS 15.4.1 has one new security patch on board and you can read more about it on Apple’s website† It helps protect your phone from damage.

If you missed the iOS 15.4 update, it had a whopping 36 new security patches on board. To learn more about these patches, visit: Apple’s security site for the details

If you missed iOS 15.3.1, it had one security patch on board. For more information, visit Apple’s security page

If you missed iOS 15.3, you will also get the corresponding patches with your upgrade. iOS 15.3 brought 10 new security patches for iPhone users. If you are interested in the details, you can read more about it here

If you missed iOS 15.2.1, you will get the security patch with your upgrade. More information about the switch can be found at Apple’s website

If you missed Apple’s iOS 15.2 update, you’ll get the 30+ security patches with your upgrade. You can read all about it on the company security site

iOS 15.2 also included some significant privacy upgrades. The software brought the company’s app privacy report to Settings. This lets you see how many times your apps accessed your location, photos, camera, microphone, contacts, and more in the past seven days. You can also see their network activity.

In addition, iOS 15.2 . brought Apple’s communications security features for children. You’ll find these features in the Messages app, Siri, Spotlight, and Search.

If you missed iOS 15.1, iOS 15.4.1 will bring the security patches to your iPhone. You can read more about it at Apple’s website

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

iOS 15.0 also brought numerous security patches to your iPhone. If you’re moving from iOS 14 and you’re interested in the exact nature of these improvements, you can read more about them at Apple’s security website

Apple has updated its website with new information about iOS 15’s suite of security patches. The company now says the software has fixed an issue that could have exposed a user’s personal Apple ID information and in-app search history. It also states that iOS 15 has fixed an issue that allowed apps to override privacy preferences.

If you skipped iOS 14.8 or an older version of iOS, you will also receive the security patches from those updates with your iOS 15.4.1 update.

In addition to these patches, iOS 15 comes with some security and privacy upgrades, including improvements to Siri. Requests to Siri are now processed on the device itself with Neural Engine. This makes it safer.

If you’re an Apple Card user, you now get a security code that changes regularly to use when transacting online.

Apple has also added a built-in authenticator similar to Google Authenticator. Allows you to generate verification codes for enhanced login security under your passwords.

There is also a Mail feature that hides your IP address.

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