iOS 27.2.1 (24B156) for iPhone 16 Plus iPhone 16 Plus

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 (12 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 16 Plus in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 16 Plus.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone17,4_27.2.1_24B156_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 16 Plus to reboot.

macOS

  1. Plug your iPhone 16 Plus in to your Mac.
  2. Navigate to your iPhone 16 Plus in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone17,4_27.2.1_24B156_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 16 Plus to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 16 Plus 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 iPhone17,4_27.2.1_24B156_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 16 Plus to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone17,4_27.2.1_24B156_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: af4f55e9d16335dbf5bd194c1f2b12fa7f929c5d. 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 iPhone17,4_27.2.1_24B156_Restore.ipsw
  3. The output of the command should match the following checksum: af4f55e9d16335dbf5bd194c1f2b12fa7f929c5d. 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 iPhone17,4_27.2.1_24B156_Restore.ipsw
  3. The output of the command should match the following checksum: af4f55e9d16335dbf5bd194c1f2b12fa7f929c5d. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum9e527d275a87cf82e0c4f7363883b13571d5e7fd57c6ebf242a073912c11405b
MD5sumb01ec84a6a0ff9f0754a5c47bd02b3c5
SHA1sumaf4f55e9d16335dbf5bd194c1f2b12fa7f929c5d
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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