How do I install iOS 26.4 beta 3 on my iPhone 17 Pro?

Connect your device to your computer. Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina and later). Hold Option (Mac) or Shift (Windows) and click Check for Update or Restore. Select the downloaded IPSW file and follow the on-screen instructions.

Is iOS 26.4 beta 3 still signed by Apple?

Yes, this firmware is currently being signed by Apple and can be installed normally.

What are SHSH blobs and how do I save them?

SHSH blobs are cryptographic tickets Apple uses to verify firmware installations. Saving them while a version is still signed lets you potentially restore to it later. Use TSS Saver (tsssaver.1conan.com) or the blobsaver app with your device ECID.

Home / iPhone / iPhone 17 Pro / iOS 26.4 beta 3 (23E5223f)

iOS 26.4 beta 3

Build 23E5223f

Currently Signed

iPhone 17 Pro iPhone18,1

Released

March 2, 2026

File Size

11.37 GB

Filename

iPhone18,1_26.4_23E5223f_Restore.ipsw

Download IPSW

Important Notice About Signing Status

Signing status was last updated less than a minute ago. Apple can stop signing at any time without notice.

Verify current status at IPSW.dev

Beta Firmware Notice

For official public releases, visit IPSWDL.com

Firmware Details

Device	iPhone 17 Pro (iPhone18,1)
OS Type	iOS
Version	26.4 beta 3
Build ID	23E5223f
Release Date	March 2, 2026
Signing Status	Signed Status last checked March 12, 2026. Verify at IPSW.dev
Filename	iPhone18,1_26.4_23E5223f_Restore.ipsw
File Size	11.37 GB
Download URL	https://updates.cdn-apple.com/2026WinterSeed/fullrestores/047-70541/CBCF2C50-A716-4818-8B42-7FB581772E33/iPhone18,1_26.4_23E5223f_Restore.ipsw

Installation Instructions

How to install this firmware

Download the IPSW file.
Connect your device to your computer.
Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina and later).
Hold Option (⌥) on Mac or Shift on Windows and click Check for Update or Restore.
Select the downloaded IPSW file and follow on-screen instructions.

Other Versions for this Device

View All

Back to Device View on Official Site Back Home

iOS 26.4 beta 3

Important Notice About Signing Status

Beta Firmware Notice

Firmware Details

Installation Instructions

How to install this firmware

Release Notes

SHSH Blobs

What are SHSH Blobs?

Using TSS Saver:

Using blobsaver:

Other Versions for this Device