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iPhone SE (2020)

iOS 17.2.1 (21C66) for iPhone SE (2020)

✗ 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 (7.28 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 (2020) in to your PC.
  3. Open iTunes, and navigate to your iPhone SE (2020).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone12,8_17.2.1_21C66_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone SE (2020) to reboot.

macOS

  1. Plug your iPhone SE (2020) in to your Mac.
  2. Navigate to your iPhone SE (2020) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone12,8_17.2.1_21C66_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone SE (2020) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone SE (2020) 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 iPhone12,8_17.2.1_21C66_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone SE (2020) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone12,8_17.2.1_21C66_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 2f56490b772c6ebcf30039cf2ae15e6ea67b742b. 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 iPhone12,8_17.2.1_21C66_Restore.ipsw
  3. The output of the command should match the following checksum: 2f56490b772c6ebcf30039cf2ae15e6ea67b742b. 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 iPhone12,8_17.2.1_21C66_Restore.ipsw
  3. The output of the command should match the following checksum: 2f56490b772c6ebcf30039cf2ae15e6ea67b742b. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 1bbafd16778272a6fa66d208e8cc3c88e1e6dbc36d853916655e3f7a42c0d0a9
MD5sum b9aca5aebdb9278aa1454a64c999aeeb
SHA1sum 2f56490b772c6ebcf30039cf2ae15e6ea67b742b
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides important bug fixes and is recommended for all users.

For information on the security content of Apple software updates, please visit this website:

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

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