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Understanding iPhone Software Updates and What's Included

Apple releases iPhone software updates several times each year. These updates are free to all iPhone users and contain security patches, bug fixes, and sometimes new features. An iPhone software update is different from purchasing a new device—it's a way to keep your existing phone running smoothly and safely.

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When Apple releases an update, it typically includes several components. Security updates fix vulnerabilities that hackers might try to exploit. Bug fixes address problems where features don't work as intended. Feature updates might add new capabilities to your camera, health tracking, or other apps. Performance improvements can make your phone faster or help the battery last longer throughout the day.

Not every update is the same size. Some updates are major releases that come once per year and bring significant changes. Other updates are smaller and released more frequently to patch security issues. For example, iOS 17 was a major release, while updates like 17.0.1 and 17.0.2 were smaller security patches released weeks later.

Your iPhone will typically notify you when an update is ready. You might see a notification on your lock screen or in Settings. The update process usually takes between 15 to 30 minutes depending on your internet connection and which iPhone model you have. Older models may take slightly longer.

Practical takeaway: Check your iPhone's current software version by going to Settings, then General, then About. Look at the "Software Version" line to see which version you're running. This information is helpful to know before reading further.

How to Check If Your iPhone Can Receive Updates

Not all iPhones can receive the latest updates. Apple supports iPhones for several years, but eventually stops providing updates for older models. Knowing whether your iPhone model can receive new updates helps you understand what information in this guide applies to your device.

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To check if your iPhone can receive updates, first identify your iPhone model. You can find this in Settings under General, then About. Look for a line that says "Model Name." Common current models include iPhone 15, iPhone 14, iPhone 13, and older versions going back several years. You can also identify your model by looking at the back of the phone or checking Apple's official website.

Apple typically supports iPhones for about five to six years. For example, as of 2024, iPhones from iPhone XS and later can receive current updates. iPhone models from 2017 and earlier may no longer receive updates. This means if you own an iPhone 6S or earlier, you likely won't receive new updates, and the information in this guide about installation wouldn't apply to your device.

Your iPhone's battery health can also affect your ability to install updates smoothly. When battery health drops below 80%, your phone may have trouble completing large updates. You can check battery health in Settings, then Battery, then Battery Health & Charging. If your battery health is low (below 50%), you might want to have it serviced before installing major updates.

Storage space is another factor. Updates require free storage space to download and install. If your iPhone has less than 5 gigabytes of free space, you may need to delete photos, videos, or apps before updating. You can check available storage in Settings, then General, then iPhone Storage.

Practical takeaway: Write down your iPhone model and software version now, along with your battery health percentage and available storage space. This creates a baseline so you know whether you're in a good position to receive and install updates.

Step-by-Step Instructions for Updating Your iPhone

The process for updating an iPhone varies slightly depending on whether you want to update using Wi-Fi or a computer. Most people update through Wi-Fi because it's straightforward and doesn't require additional equipment.

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To update via Wi-Fi, start by connecting your iPhone to a strong Wi-Fi network. Open the Settings app and tap General. Scroll down and tap Software Update. Your iPhone will check for available updates. If an update is ready, you'll see information about what's included and the file size. Read this information to understand what the update contains.

Before tapping the button to proceed, charge your iPhone to at least 50%. Many people prefer to charge it to 100% or plug it in during the update process. This prevents the phone from shutting down mid-update, which could cause problems. Also, make sure you won't need your phone for the next 20 to 30 minutes, as it will restart several times during the process.

Tap the button to begin the update. Your phone will download the update file, which can take several minutes depending on file size and internet speed. Do not unplug your phone or turn off Wi-Fi during this time. Once downloaded, your iPhone will ask whether to update now or later. If you choose now, the installation begins immediately. The phone will restart multiple times, showing an Apple logo on the screen.

If you prefer to use a computer to update, connect your iPhone to a Mac or Windows computer using a USB cable. Open Finder on Mac or iTunes on Windows. Select your iPhone in the device list. Click Check for Update or look for an update button. Follow the on-screen instructions. This method is useful if you have a weak Wi-Fi connection or prefer having a computer present during the process.

Practical takeaway: Set aside a specific time to update when you won't need your phone for 30 minutes. Charge your phone fully beforehand. Connect to Wi-Fi and follow the steps above. Don't interrupt the process once it begins.

What Happens During and After the Update Process

Understanding what occurs during an update helps you know what to expect and when something isn't working as intended. The update process happens in predictable stages, though the exact experience varies by phone model and update size.

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During the download phase, your iPhone's screen shows a progress bar. The percentage displayed indicates how much of the update file has transferred from Apple's servers to your phone. This phase typically takes 5 to 15 minutes depending on your internet speed. If your Wi-Fi disconnects, the download may pause or restart from the beginning. Some phones can resume downloads if interrupted, but it's best to maintain a stable connection.

Once downloaded, the installation phase begins. Your iPhone will restart, showing the Apple logo. The screen will appear dark or show a progress bar. During this time, the update files are being written to your phone's storage. This phase lasts about 5 to 10 minutes. Your phone may restart multiple times—this is normal and expected. Do not turn off your phone during this phase.

After the phone restarts completely, it may show the setup screen, asking you to enter your passcode or use Face ID to unlock. This is a security measure. Enter your credentials to verify ownership. Your phone might take a few minutes to finalize the update and reorganize files in the background.

After the update completes, you might notice your phone runs slightly slower for a few minutes as it optimizes apps and indexes content. This is temporary. Within a few hours, performance should return to normal or even improve. Some people notice battery performance changes in either direction after updates—this typically stabilizes over a few days as the phone's systems settle.

If something goes wrong and your iPhone gets stuck on the Apple logo for more than 10 minutes, you can force restart it. The method depends on your model: on iPhone X and later, quickly press and release the volume up button, then the volume down button, then press and hold the side button until the Apple logo appears.

Practical takeaway: After updating, give your phone several hours to complete background optimization before judging performance. If you experience any frozen screens, restart your phone using the force restart method specific to your model.

Common Update Questions and Things to Know

Many people have questions about iPhone updates that don't fit into the basic steps. Understanding these points helps you make decisions about when and how to update.

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One common question is whether updates drain battery. Updates themselves don't permanently drain battery, but the process of downloading and installing uses power. That's why charging your phone beforehand matters. After the update completes and the phone finishes background optimization, battery performance should match what you experienced before the update. If battery seems worse days after an update, it may indicate an unrelated issue worth investigating.

Another question concerns data. Updates do not erase your photos, messages, contacts, or apps. Your personal information stays on your phone throughout the update process. However, it's always good practice to maintain backups using iCloud or a computer