Apple iPhone 11 iOS 14.3 firmware
Apple iPhone 11
Not signed
iOS 14.3
Build 18C66 For iPhone12,1, N104AP
Global · IPSW
A newer version is available for this region: iOS 27.0.1
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
5.35 GB
Downloads from updates.cdn-apple.com.
File details
- Device
- Apple iPhone 11
- OS
- iOS 14.3
- Region
- Global
- Type
- IPSW
- Released
- Size
- 5.35 GB
- File name
iPhone11,8,iPhone12,1_14.3_18C66_Restore.ipsw- MD5
c88c3cc590c1b39c26a1703cf56c673a- SHA-1
b4ba7ccad716409e8151cae9743cfb78c59eb753- SHA-256
c691b8a5054b9b40c76c219d6a81e149f8a6375fda1e1269506215dc17b69158
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: iPhone12,1, N104AP. 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