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iPhone 14 iPhone 14 iPhone14,7
IPSW Unsigned 21B91

iOS 17.1.1

OS
iOS
Version
17.1.1
Build ID
21B91
File Size
7.30 GB
Release Date
2023-11-08
Last Updated
2023-11-03

About This Firmware

iOS 17.1.1 (build 21B91) is an official Apple IPSW for the iPhone 14, released on 2023-11-08. The file is served directly from Apple's CDN. This firmware is no longer signed by Apple. Standard downgrades are not possible, but the file remains available for reference and advanced use.

Verify the download using the SHA-256 or SHA-1 checksum listed in the Checksums section below.

Filename

iPhone14,7_17.1.1_21B91_Restore.ipsw

Checksums

SHA-256 9b10f85bba7378a1802bcd84548f8045e461c11b8f1b0acb10b9e860c8e15e22
SHA-1 e1ce77ccee3b1c5feab28e34d010951ce5a46bf1
MD5 b77d856ad741a9cfed377cb76ca3b851

Direct URL

https://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96341/D5F8E6F0-EF83-4006-BEF8-54D4A2BD57D8/iPhone14,7_17.1.1_21B91_Restore.ipsw

Other Devices

How to Restore with This IPSW

iTunes / Finder

macOS & Windows
  1. Download the .ipsw file to your computer.
  2. Connect your iPhone 14 via USB.
  3. Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
  4. Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
  5. Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
  6. Wait for the process to finish - do not disconnect.
Restoring will erase all data on the device. Back up first.

3uTools

Windows
  1. Download and install 3uTools from 3u.com.
  2. Connect your iPhone 14 via USB and trust the computer on the device.
  3. Go to Flash & JB → Easy Flash.
  4. Click Import and select the downloaded .ipsw file.
  5. Choose Flash mode: Update keeps data, Restore wipes the device.
  6. Click Flash and wait for the progress bar to complete - do not disconnect.
Only flash firmware that matches your exact device model.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or iTunes/Finder does not recognise it, enter DFU mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

  1. Quickly press & release Volume Up
  2. Quickly press & release Volume Down
  3. Hold Side button until screen goes black
  4. Hold Side + Volume Down for 5 s
  5. Release Side, hold Volume Down 5 more s
  6. Black screen = DFU active

iPhone 7 / 7 Plus

  1. Hold Sleep/Wake + Volume Down for 8 s
  2. Release Sleep/Wake, keep holding Volume Down for 5 s
  3. Black screen = DFU active

iPhone 6s and earlier

  1. Hold Sleep/Wake + Home for 8 s
  2. Release Sleep/Wake, keep holding Home for 5 s
  3. Black screen = DFU active
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