Apple iPhone Air iOS 27.0 firmware
Apple iPhone Air
Not signed
iOS 27.0
Build 24A437 For iPhone18,4, D23AP
Global · IPSW
A newer version is available for this region: iOS 27.2 beta 4
Apple no longer signs this version, so a normal restore with Finder or iTunes will fail. Use a signed version unless you know you need this one.
Download
11.6 GB
Downloads from updates.cdn-apple.com.
File details
- Device
- Apple iPhone Air
- OS
- iOS 27.0
- Region
- Global
- Type
- IPSW
- Released
- Size
- 11.6 GB
- File name
iPhone18,4_27.0_24A437_Restore.ipsw- MD5
4693d6f1e1c17051ffa32c36c5d80938- SHA-1
8eccae20930dfa248389604d9fba4d50e5876c86- SHA-256
c68d66dc9fafef659c6954e260fa61a46f4b77d0f86f46e6c5bd00d0fbe2ce41
After downloading, compare the checksum with the one above. If they differ, the file is incomplete — download it again.
Before you download
- Make sure your device’s model number is one of: iPhone18,4, D23AP. You will find it in Settings → About phone, or on the box.
- This file is for the Global region. Installing another region’s firmware can remove features or block updates.
- Apple devices can only restore versions marked “Signed”.
- Back up your photos, contacts and files first, and charge the battery above 50%.
How to install
Use Finder on a Mac or the Apple Devices app / iTunes on Windows to install an IPSW file. Apple only accepts versions it is still signing, so check the “Signed” label before you download.
Read the guide: How to restore an iPhone, iPad or iPod with an IPSW file