iPhone Air

iOS 27.2.1 (24B156) for iPhone Air

Signed — can be installed Released Nov 9, 2026 iPhone18,4

Download IPSW

iPhone18,4_27.2.1_24B156_Restore.ipsw

11.94 GB
Download iOS 27.2.1

The file is downloaded directly from Apple’s servers (updates.cdn-apple.com). Large files download faster with a download manager or curl -O.

Verify the file

SHA256
2b7a00c95d50b33ed096e7b53d8044be7c77470cef2601f27b834689963e8e53
SHA1
90b530587d56fb858fc36a2077c1156fa03d9b29
MD5
897c52ddf6b2f24cec164b5638e24312

On a Mac: shasum -a 256 iPhone18,4_27.2.1_24B156_Restore.ipsw · On Windows: certutil -hashfile iPhone18,4_27.2.1_24B156_Restore.ipsw SHA256

Firmware details

Version
iOS 27.2.1
Build
24B156
Released
November 9, 2026
Uploaded
November 6, 2026
File size
11.94 GB (12,820,923,551 bytes)
Signing
Signed

Device

Identifier
iPhone18,4
Board
D23AP
Platform
t8150
CPID
0x8150
BDID
0xA

Jailbreak

No public jailbreak is known for iOS 27.2.1 on iPhone Air.

Real jailbreaks are always free and open source. Sites asking you to pay, install profiles or “verify” with surveys are scams.

How to install iOS 27.2.1 with this IPSW

  1. Back up your iPhone Air to iCloud or your computer — restoring erases the device.
  2. Turn off Find My in Settings → [your name] → Find My.
  3. Connect the device with a cable and open Finder (macOS Catalina or later) or Apple Devices / iTunes (Windows).
  4. Hold Option (Mac) or Shift (Windows) and click Restore. Choose iPhone18,4_27.2.1_24B156_Restore.ipsw.
  5. Wait — the device restarts several times. Don’t disconnect it until you see the Hello screen.

Stuck on the Apple logo? Put the device into recovery mode first, then restore.

Build 24B156 is also available for

iPhone 18 Pro iPhone 18 Pro Max (US) iPhone 18 Pro Max iPad Air 13-inch (M4, WiFi) iPad Air 11-inch (M4, WiFi) iPad Air 13-inch (M4, Cellular) iPhone 17e iPad Air 11-inch (M4, Cellular) iPad Pro 11-inch (M5, Cellular) iPad Pro 11-inch (M5, WiFi) iPad Pro 13-inch (M5, WiFi) iPad Pro 13-inch (M5, Cellular) iPhone 17 iPhone 17 Pro Max iPhone 17 Pro iPad Air 13-inch (M3, Cellular) iPad (A16, WiFi) iPad Air 11-inch (M3, Cellular) iPad (A16, Cellular) iPad Air 13-inch (M3, WiFi) iPad Air 11-inch (M3, WiFi) iPhone 16e iPad mini (A17 Pro, WiFi) iPad mini (A17 Pro, Cellular) iPhone 16 Pro iPhone 16 iPhone 16 Pro Max iPhone 16 Plus iPad Air (M2, 11-inch, WiFi) iPad Air (M2, 11-inch, Cellular) iPad Air (M2, 13-inch, Cellular) iPad Pro (M4, 13-inch, Cellular) iPad Pro (M4, 13-inch, WiFi) iPad Air (M2, 13-inch, WiFi) iPad Pro (M4, 11-inch, WiFi) iPad Pro (M4, 11-inch, Cellular) iPhone 15 Pro Max iPhone 15 Pro iPhone 15 Plus iPhone 15

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