iOS 27.2.1 (24B156) for iPhone 18 Pro iPhone 18 Pro

1 Choose a product
2 Choose a device
3 Choose a version
4 Download

✓ This firmware is signed. This means that you can restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

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

Download (13 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 18 Pro in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 18 Pro.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone19,2,iPhone19,3,iPhone19,7_27.2.1_24B156_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 18 Pro to reboot.

macOS

  1. Plug your iPhone 18 Pro in to your Mac.
  2. Navigate to your iPhone 18 Pro in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone19,2,iPhone19,3,iPhone19,7_27.2.1_24B156_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 18 Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 18 Pro 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 iPhone19,2,iPhone19,3,iPhone19,7_27.2.1_24B156_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 18 Pro to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone19,2,iPhone19,3,iPhone19,7_27.2.1_24B156_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 9bc7a64f3ca36783f7d448f28eda142bbd6d97ca. 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 iPhone19,2,iPhone19,3,iPhone19,7_27.2.1_24B156_Restore.ipsw
  3. The output of the command should match the following checksum: 9bc7a64f3ca36783f7d448f28eda142bbd6d97ca. 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 iPhone19,2,iPhone19,3,iPhone19,7_27.2.1_24B156_Restore.ipsw
  3. The output of the command should match the following checksum: 9bc7a64f3ca36783f7d448f28eda142bbd6d97ca. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum32265512d9e9a8130e4b70d546c0a548111d875ed39f6052a3e51b1440876399
MD5sum8fce3fb732eca49cf6f659233db60b9e
SHA1sum9bc7a64f3ca36783f7d448f28eda142bbd6d97ca
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides bug fixes and security updates for your iPhone.

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

https://support.apple.com/100100

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