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iPhone SE (3rd generation)

iOS 17.3 (21D50) for iPhone SE (3rd generation)

✗ This firmware is not signed. This means you cannot restore to it in iTunes.

Your download should begin shortly. If it does not, you can download it directly here:

Download (7.5 GB)

✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone SE (3rd generation) in to your PC.
  3. Open iTunes, and navigate to your iPhone SE (3rd generation).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone14,6_17.3_21D50_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone SE (3rd generation) to reboot.

macOS

  1. Plug your iPhone SE (3rd generation) in to your Mac.
  2. Navigate to your iPhone SE (3rd generation) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone14,6_17.3_21D50_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone SE (3rd generation) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone SE (3rd generation) in to your PC.
  3. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  4. To perform a full erase restore, type idevicerestore -e iPhone14,6_17.3_21D50_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone SE (3rd generation) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone14,6_17.3_21D50_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: aaa3d1491bd6e9aa630030f566ed33b9d90482a5. If it doesn't, you may need to redownload the file.

macOS

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPhone14,6_17.3_21D50_Restore.ipsw
  3. The output of the command should match the following checksum: aaa3d1491bd6e9aa630030f566ed33b9d90482a5. If it doesn't, you may need to redownload the file.

Linux

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPhone14,6_17.3_21D50_Restore.ipsw
  3. The output of the command should match the following checksum: aaa3d1491bd6e9aa630030f566ed33b9d90482a5. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 0277465f2712707a6c896d216993c5b3f87bf4d52cc7d3482c4364c8fe5f2aba
MD5sum 2376d7a43cfa64072b144820496c0fbc
SHA1sum aaa3d1491bd6e9aa630030f566ed33b9d90482a5
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

Stolen Device Protection

  • Stolen Device Protection increases security of iPhone and Apple ID by requiring Face ID or Touch ID with no passcode fallback to perform certain actions

  • Security Delay requires Face ID or Touch ID, an hour wait, and then an additional successful biometric authentication before sensitive operations like changing device passcode or Apple ID password can be performed

Lock Screen

  • New Unity wallpaper honors Black history and culture in celebration of Black History Month

Music

  • Collaborate on playlists allows you to invite friends to join your playlist and everyone can add, reorder, and remove songs

  • Emoji reactions can be added to any track in a collaborative playlist

This update also includes the following improvements:

  • AirPlay hotel support lets you stream content directly to the TV in your room in select hotels

  • AppleCare & Warranty in Settings shows your coverage for all devices signed in with your Apple ID

  • Crash detection optimizations (all iPhone 14 and iPhone 15 models)

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

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