Apple has released the iOS 27.2.1 and iPadOS 27.2.1 IPSW firmware files, so you can update or restore an iPhone or iPad manually from a Mac or Windows PC. Most models use build 24B156, but the iPad mini with A20 Pro uses 24B8156 and the iPhone Duo uses 24B91034.
The update is a bug fix and security release that comes two weeks after iOS 27.2. An IPSW file is the full firmware package for one device model, which helps when an over-the-air update keeps failing or a device needs a restore. Everyone else can install from Settings, then General, then Software Update.
Build 24B156 follows build 24B119 from the iOS 27.2 IPSW files and covers every iPhone and iPad except two models that have their own builds, as shown in the table below. The files for build 24B156 run from about 10.7 GB to 13.7 GB depending on the model.
Each file is tied to a specific model, so check Settings, then General, then About for your exact model before you download. The build number is part of every file name, so a file that ends in 24B8156 or 24B91034 only fits the iPad mini with A20 Pro or the iPhone Duo.
| Release | Build |
|---|---|
| iOS 27.2.1 and iPadOS 27.2.1 | 24B156 |
| iPadOS 27.2.1 for iPad mini with A20 Pro | 24B8156 |
| iOS 27.2.1 for iPhone Duo | 24B91034 |
| iOS 27.2 and iPadOS 27.2 | 24B119 |
iOS 27.2.1 IPSW Files for iPhone
Every iPhone that runs iOS 27 has a file, from the iPhone 11 to the iPhone 18 Pro Max. A few files cover two or three models at once.
- iPhone 18 Pro and iPhone 18 Pro Max
- iPhone Duo (build 24B91034)
- iPhone Air
- iPhone 17 Pro Max
- iPhone 17 Pro
- iPhone 17
- iPhone 17e
- iPhone 16 Pro Max
- iPhone 16 Pro
- iPhone 16 Plus
- iPhone 16
- iPhone 16e
- iPhone 15 Pro Max
- iPhone 15 Pro
- iPhone 15 Plus
- iPhone 15
- iPhone 14 Pro Max
- iPhone 14 Pro
- iPhone 14 Plus
- iPhone 14
- iPhone SE (3rd generation)
- iPhone 13
- iPhone 13 mini
- iPhone 13 Pro Max
- iPhone 13 Pro
- iPhone 12 Pro Max
- iPhone 12 and iPhone 12 Pro
- iPhone 12 mini
- iPhone SE (2nd generation)
- iPhone 11 Pro and iPhone 11 Pro Max
- iPhone 11
iPadOS 27.2.1 IPSW Files for iPad
The iPad files are grouped by model family, so one file can cover the Wi-Fi and cellular versions of the same iPad. The iPad mini with A20 Pro is the only iPad on build 24B8156.
- iPad Pro 11-inch (M5) and iPad Pro 13-inch (M5)
- iPad mini (A20 Pro) (build 24B8156)
- iPad mini (A17 Pro)
- iPad Pro 11-inch (M4) and iPad Pro 13-inch (M4)
- iPad (A16) Wi-Fi + Cellular
- iPad (A16) Wi-Fi
- iPad Air 11-inch (M4) and iPad Air 13-inch (M4)
- iPad Air 11-inch (M3) and iPad Air 13-inch (M3)
- iPad Air 11-inch (M2) and iPad Air 13-inch (M2)
- iPad Pro 11-inch (4th generation) and iPad Pro 12.9-inch (6th generation)
- iPad Air (5th generation)
- iPad (10th generation)
- iPad Pro 11-inch (3rd generation) and iPad Pro 12.9-inch (5th generation)
- iPad Pro 11-inch (2nd generation) and iPad Pro 12.9-inch (4th generation)
- iPad mini (6th generation)
- iPad (9th generation)
- iPad Air (4th generation)
Restoring Can Erase the Device
The steps below install the file from a computer. Back up the iPhone or iPad to iCloud or a computer first, because a full restore wipes everything on it.
- Download the IPSW file that matches your exact model
- Connect the device to a Mac and open it in Finder, or to a Windows PC and open the Apple Devices app
- Hold Option on a Mac or Shift on Windows, then click Check for Update
- Select the IPSW file you downloaded
- Wait for the install to finish and the device to restart
Clicking Restore instead of Check for Update erases the device and installs a fresh copy of iOS 27.2.1 or iPadOS 27.2.1. Apple usually stops signing older builds soon after a new one ships, and an unsigned file cannot be installed. Apple is currently signing the iOS 27.2.1 and iPadOS 27.2.1 builds listed above for every iPhone and iPad model on this page.
