Update iOS on iPhone

When you update to the latest version of iOS, your data and settings remain unchanged. You can also automatically install system file updates to improve the features of your iPhone without updating iOS.

Before you update, set up iPhone to back up automatically, or back up your device manually.

Update iPhone automatically

If you didn’t turn on automatic updates when you first set up your iPhone, do the following:

  1. Go to the Settings app  on your iPhone.

  2. Tap General, tap Software Update, then tap Automatic Updates.

  3. Turn on one of the following:

    • Automatically Install: When an update is available, iPhone downloads and installs it overnight while charging and connected to Wi-Fi. You’re notified before an update is installed.

    • Automatically Download: Downloads an update automatically when your iPhone is connected to Wi‑Fi, charging, and locked so you can install the update later. To see this option, first turn off Automatically Install.

Update iPhone manually

At any time, you can check for and install software updates.

  1. Go to the Settings app  on your iPhone.

  2. Tap General, then tap Software Update.

    The currently installed version of iOS is shown, and whether an update is available.

  3. If an update is available, tap Download and Install, then follow the onscreen instructions.

Update using your computer

  1. Connect iPhone and your computer with a cable.

  2. Do one of the following:

    • On a Mac (macOS 10.15 or later): In the Finder sidebar, select your iPhone, then click General at the top of the window.

    • On a Mac (macOS 10.14 or earlier) or a Windows device: Open the iTunes app, click the button resembling an iPhone near the top left of the iTunes window, then click Summary.

      Note: Use the latest version of iTunes. See the Apple Support article Update to the latest version of iTunes.

  3. Click Check for Update.

  4. To install an available update, click Update.

Automatically update system files only

iPhone can automatically download and install system file updates to improve iPhone features without updating iOS.

  1. Go to the Settings app on your iPhone.

  2. Tap General, tap Software Update, then tap Automatic Updates.

  3. Under iOS Updates, turn off Automatically Install.

  4. Under System Files, turn on Automatically Install.

See the Apple Support articles How to download iOS 26 and If you can’t update or restore your iPhone, iPad, or iPod touch.

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