iOS 6.1.2 (10B146) for iPhone 4[S]

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iPhone 4[S]

✗ This firmware is not signed. This means you cannot 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 (920 MiB)

This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore. The instructions below are included for reference only.

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 4[S] in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 4[S].
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone4,1_6.1.2_10B146_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 4[S] to reboot.

macOS

  1. Plug your iPhone 4[S] in to your Mac.
  2. Navigate to your iPhone 4[S] in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone4,1_6.1.2_10B146_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 4[S] to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 4[S] 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 iPhone4,1_6.1.2_10B146_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 4[S] to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone4,1_6.1.2_10B146_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 40392e8b3cf6934e639374a215cae7859f83f02c. 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 iPhone4,1_6.1.2_10B146_Restore.ipsw
  3. The output of the command should match the following checksum: 40392e8b3cf6934e639374a215cae7859f83f02c. 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 iPhone4,1_6.1.2_10B146_Restore.ipsw
  3. The output of the command should match the following checksum: 40392e8b3cf6934e639374a215cae7859f83f02c. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum80091d5cbd1730539eed256c60e61d26b26439a34b33ee419714d1365a4f0565
MD5sum80091d5cbd1730539eed256c60e61d26b26439a34b33ee419714d1365a4f0565
SHA1sum40392e8b3cf6934e639374a215cae7859f83f02c
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 6.1.2

Fixes an Exchange calendar bug that could result in increased network activity and reduced battery life.

For information on the security content of this update, please visit this website:   

http://support.apple.com/kb/HT1222

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