iPhone 17

iOS 27.2.1 (24B156) for iPhone 17

Signed — can be installed Released Nov 9, 2026 iPhone18,3

Download IPSW

iPhone18,3_27.2.1_24B156_Restore.ipsw

12.17 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
d5fc353ece9bbd6e18054c07b994bfdb3e646cbfcb48eb98cb5486cbe66e1f32
SHA1
e9784661fef0861de0c80bb3af94618d9e9451f7
MD5
c3888c5d43bbe6cee6d1d08036e66826

On a Mac: shasum -a 256 iPhone18,3_27.2.1_24B156_Restore.ipsw · On Windows: certutil -hashfile iPhone18,3_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
12.17 GB (13,070,345,960 bytes)
Signing
Signed

Device

Identifier
iPhone18,3
Board
V57AP
Platform
t8150
CPID
0x8150
BDID
0x8

Jailbreak

No public jailbreak is known for iOS 27.2.1 on iPhone 17.

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 17 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 iPhone18,3_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 Air 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

← All iPhone 17 firmware