Apple iPhone 6s iOS 14.3 IPSW firmware
Apple iPhone 6s
Not signed
iOS 14.3
Build 18C66 For iPhone8,1, N71AP, N71mAP
Global · IPSW
A newer version is available for this region: iOS 15.8.8
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
4.24 GB
Downloads from updates.cdn-apple.com.
File details
- Device
- Apple iPhone 6s
- OS
- iOS 14.3
- Region
- Global
- Type
- IPSW
- Released
- Size
- 4.24 GB
- File name
iPhone_4.7_14.3_18C66_Restore.ipsw- MD5
a544da03166662cc754ab091d0e4611b- SHA-1
dfd7d0167a49ac3138beec24998ae5cd9355df7b- SHA-256
2040f73793ba3d3361bad72ecae36d3c0919e6798cd60581a5ba2f8d459f3293
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: iPhone8,1, N71AP, N71mAP. 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