iOS 27.2.1 (24B156) for iPhone 15 iPhone 15

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 (11 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 15 in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 15.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone15,4_27.2.1_24B156_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 15 to reboot.

macOS

  1. Plug your iPhone 15 in to your Mac.
  2. Navigate to your iPhone 15 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone15,4_27.2.1_24B156_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 15 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 15 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 iPhone15,4_27.2.1_24B156_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 15 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone15,4_27.2.1_24B156_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 3cc21b4b1caa687e11ff97253ffd62077ba7ed20. 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 iPhone15,4_27.2.1_24B156_Restore.ipsw
  3. The output of the command should match the following checksum: 3cc21b4b1caa687e11ff97253ffd62077ba7ed20. 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 iPhone15,4_27.2.1_24B156_Restore.ipsw
  3. The output of the command should match the following checksum: 3cc21b4b1caa687e11ff97253ffd62077ba7ed20. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum8de1f519453177b95203d55241a5d1e42b10e24b73d2b8c587f23b683e2ceb44
MD5suma459f76f33669938e825aa4257488ceb
SHA1sum3cc21b4b1caa687e11ff97253ffd62077ba7ed20
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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