About This Firmware
iOS 27.0.1
(build 24A446) is an official Apple IPSW
for the iPhone Air,
released on 2026-09-28.
The download is 11.65 GB and is served directly from Apple's CDN.
This firmware is currently signed by Apple, so it can be used to restore or update your device via iTunes or Finder.
Verify the download using the checksums below.
Filename
iPhone18,4_27.0.1_24A446_Restore.ipsw
Checksums
SHA-256
31bb0febff538c8f5c7695216bc2e4f3f55c66c489b8835d035428000fe55693
SHA-1
378e5771d3e8514974c913301fbd8d9d4008c2c6
MD5
9d7b78fce88004a2fcf32999f51f48fd
Direct URL
https://updates.cdn-apple.com/2026FallFCS/91255a6b-fab1-4e33-a38a-6de41a2bb61c/iPhone18,4_27.0.1_24A446_Restore.ipsw
Other Devices
iPhone 12
iPhone13,2
iPhone 5s (GSM)
iPhone6,1
iPhone 14
iPhone14,7
iPhone 17
iPhone18,3
iPhone 5 (GSM)
iPhone5,1
iPhone 18 Pro Max (US)
iPhone19,3
How to Restore with This IPSW
iTunes / Finder
macOS & Windows- Download the .ipsw file to your computer.
- Connect your iPhone Air via USB.
- Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
- Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
- Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
- Wait for the process to finish - do not disconnect.
Restoring will erase all data on the device. Back up first.
3uTools
Windows- Download and install 3uTools from 3u.com.
- Connect your iPhone Air via USB and trust the computer on the device.
- Go to Flash & JB > Easy Flash.
- Click Import and select the downloaded .ipsw file.
- Choose Flash mode: Update keeps data, Restore wipes the device.
- 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 tipIf 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
- Quickly press & release Volume Up
- Quickly press & release Volume Down
- Hold Side button until screen goes black
- Hold Side + Volume Down for 5 s
- Release Side, hold Volume Down 5 more s
- Black screen = DFU active
iPhone 7 / 7 Plus
- Hold Sleep/Wake + Volume Down for 8 s
- Release Sleep/Wake, keep holding Volume Down for 5 s
- Black screen = DFU active
iPhone 6s and earlier
- Hold Sleep/Wake + Home for 8 s
- Release Sleep/Wake, keep holding Home for 5 s
- Black screen = DFU active