Apple iPhone 16 iOS 26.3 IPSW firmware

Apple iPhone 16 Not signed
iOS 26.3

Build 23D127 For iPhone17,3, D47AP

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 10.1 GB

Downloads from updates.cdn-apple.com.

File details

OS
iOS 26.3
Region
Global
Type
IPSW
Released
Size
10.1 GB
File name
iPhone17,3_26.3_23D127_Restore.ipsw
MD5
c9f3f630e0f6f39f271d3116e5174bda
SHA-1
366305d9ea6bcb9812b2ba79e2c9432d692f7826
SHA-256
56aeb664b9bf746d821e77e8b9187f446b47ebe3afe3590c768586e172dae8a9

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: iPhone17,3, D47AP. 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

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