iOS 17.1 (21B74) for iPhone 12
✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
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Download (7.3 GiB)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
- Install the latest version of Apple Devices from the Microsoft Store.
- Plug your iPhone 12 in to your PC.
- Open Apple Devices, and navigate to your iPhone 12.
- Hold the Shift key on your keyboard, and press "Restore".
- Select the
iPhone13,2,iPhone13,3_17.1_21B74_Restore.ipswfile that you downloaded. - Wait for the restore to complete, and the iPhone 12 to reboot.
macOS
- Plug your iPhone 12 in to your Mac.
- Navigate to your iPhone 12 in Finder.
- Hold the Option or Alt key on your keyboard, and press "Restore".
- Select the
iPhone13,2,iPhone13,3_17.1_21B74_Restore.ipswfile that you downloaded. - Wait for the restore to complete, and the iPhone 12 to reboot.
Linux
- Install idevicerestore.
- Plug your iPhone 12 in to your PC.
- Open a terminal, and navigate to the IPSW file that you downloaded, e.g.
cd ~/Downloads - To perform a full erase restore, type
idevicerestore -e iPhone13,2,iPhone13,3_17.1_21B74_Restore.ipswand press enter. - Wait for the restore to complete, and the iPhone 12 to reboot.
Windows
- Open PowerShell, and navigate to the IPSW file that you downloaded, e.g.
cd Downloads - Type
Get-FileHash iPhone13,2,iPhone13,3_17.1_21B74_Restore.ipsw -Algorithm SHA1 - The output of the command should match the following checksum:
b1ae7cb2e908d8300bd9f2b34ab1188971cb3a57. If it doesn't, you may need to redownload the file.
macOS
- Open a terminal, and navigate to the IPSW file that you downloaded, e.g.
cd ~/Downloads - Type
openssl sha1 iPhone13,2,iPhone13,3_17.1_21B74_Restore.ipsw - The output of the command should match the following checksum:
b1ae7cb2e908d8300bd9f2b34ab1188971cb3a57. If it doesn't, you may need to redownload the file.
Linux
- Open a terminal, and navigate to the IPSW file that you downloaded, e.g.
cd ~/Downloads - Type
openssl sha1 iPhone13,2,iPhone13,3_17.1_21B74_Restore.ipsw - The output of the command should match the following checksum:
b1ae7cb2e908d8300bd9f2b34ab1188971cb3a57. If it doesn't, you may need to redownload the file.
Checksums
| SHA256sum | bef9b6889892bf64fb91586773fb1484b47f3482714e9ae741f12f00c6608d8d |
|---|---|
| MD5sum | bef9b6889892bf64fb91586773fb1484b47f3482714e9ae741f12f00c6608d8d |
| SHA1sum | b1ae7cb2e908d8300bd9f2b34ab1188971cb3a57 |
AirDrop
Content continues to transfer over the internet when you step out of AirDrop range
StandBy
New options to control when the display turns off (iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 Pro, and iPhone 15 Pro Max)
Music
Favorites expanded to include songs, albums, and playlists, and you can filter to display your favorites in the library
New cover art collection offers designs that change colors to reflect the music in your playlist
Song suggestions appear at the bottom of every playlist, making it easy to add music that matches the vibe of your playlist
This update also includes the following improvements and bug fixes:
Option to choose a specific album to use with Photo Shuffle on the Lock Screen
Home key support for Matter locks
Improved reliability of Screen Time settings syncing across devices
Fixes an issue that may cause the Significant Location privacy setting to reset when transferring an Apple Watch or pairing it for the first time
Resolves an issue where the names of incoming callers may not appear when you are on another call
Addresses an issue where custom and purchased ringtones may not appear as options for your text tone
Fixes an issue that may cause the keyboard to be less responsive
Crash detection optimizations (all iPhone 14 and iPhone 15 models)
Fixes an issue that may cause display image persistence
Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: