Updating your iPhone to iOS 18.3.2 is a straightforward process that can be completed directly on your device. Here's a step-by-step guide:
1. Ensure Your Device is Eligible: First, check if your iPhone supports iOS 18.3.2. Generally, iPhones from the XS and newer models are compatible with iOS 18[3].
2. Backup Your Data: Before starting the update, it's a good idea to backup your iPhone. You can do this using iCloud or by connecting your iPhone to a computer and using iTunes. This ensures that your data is safe in case anything goes wrong during the update process[3].
3. Connect to Wi-Fi or 5G: Make sure your iPhone is connected to a stable internet connection, either via Wi-Fi or 5G. This is necessary for downloading the update[3].
4. Charge Your iPhone: Ensure your iPhone is charged to at least 30% or plug it into a charger. This prevents the update from being interrupted due to low battery[3].
5. Check for the Update:
- Open the Settings app on your iPhone.
- Tap on General.
- Select Software Update.
- If the update is available, you will see iOS 18.3.2 listed here[1][5].
6. Download and Install the Update:
- Tap Download and Install.
- Enter your passcode if prompted.
- Tap Install Now to begin the installation process[1][5].
7. Wait for the Update to Complete: Your iPhone will restart during the installation. Let it complete the process without interrupting it. Once done, your iPhone will be updated to iOS 18.3.2[3].
**Automatic Updates: If you have automatic updates enabled, your iPhone will update to iOS 18.3.2 overnight when it's plugged in and connected to Wi-Fi[1].
**Important Note: The iOS 18.3.2 update includes a critical security patch for a vulnerability in WebKit, which could allow malicious web content to escape the Web Content sandbox. It's highly recommended to update your iPhone as soon as possible to protect your device from potential attacks[2][6]. Additionally, this update will enable Apple Intelligence by default, even if you had previously disabled it[1].
Citations:
[1] https://www.standard.co.uk/news/tech/apple-ios-18-3-2-iphone-update-b1216181.html
[2] https://www.forbes.com/sites/kateoflahertyuk/2025/03/12/ios-1832-update-now-warning-issued-to-all-iphone-users/
[3] https://www.youtube.com/watch?v=f0FweGOfQhw
[4] https://appleinsider.com/articles/25/03/11/apple-seeds-security-updates-for-ios-1832-ipados-1832-macos-1532-visionos-232
[5] https://www.yahoo.com/tech/download-ios-18-3-2-211159010.html
[6] https://www.cnet.com/tech/services-and-software/download-ios-18-3-2-right-now-to-patch-this-security-issue/
[7] https://www.youtube.com/watch?v=QvhdtaXJVAI
[8] https://support.apple.com/guide/iphone/update-ios-iph3e504502/ios
[9] https://www.youtube.com/watch?v=8rbBzdKhKbA
[10] https://discussions.apple.com/thread/255955609