iOS 27.2.1 (24B156) for iPhone 12 Pro Max
Download IPSW
iPhone13,4_27.2.1_24B156_Restore.ipsw
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
- f7a400b12775566de9dad6235927114687028dfe7eb0866af2d98a3f3b2555c9
- SHA1
- b7b19ad7dce3124dbda673fda61c92c28d67459f
- MD5
- 5d610cb7393aa9463f309b64c0dfac2b
On a Mac: shasum -a 256 iPhone13,4_27.2.1_24B156_Restore.ipsw · On Windows: certutil -hashfile iPhone13,4_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
- 10.68 GB (11,465,180,983 bytes)
- Signing
- Signed
Device
- Identifier
iPhone13,4- Board
D54pAP- Platform
t8101- CPID
0x8101- BDID
0x8
Jailbreak
No public jailbreak is known for iOS 27.2.1 on iPhone 12 Pro Max.
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
- Back up your iPhone 12 Pro Max to iCloud or your computer — restoring erases the device.
- Turn off Find My in Settings → [your name] → Find My.
- Connect the device with a cable and open Finder (macOS Catalina or later) or Apple Devices / iTunes (Windows).
- Hold Option (Mac) or Shift (Windows) and click Restore. Choose
iPhone13,4_27.2.1_24B156_Restore.ipsw. - 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.