How do I install iOS 26.1 beta on my iPhone Air?

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.

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 Air / iOS 26.1 beta (23B5073a)

iOS 26.1 beta

Build 23B5073a

No Longer Signed

iPhone Air iPhone18,4

Released

October 20, 2025

File Size

10.69 GB

Filename

iPhone18,4_26.1_23B5073a_Restore.ipsw

Download IPSW All Build 23B5073a Firmware

Important Notice About Signing Status

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

Beta Firmware Notice

For official public releases, visit IPSWDL.com

Firmware Details

Device	iPhone Air (iPhone18,4)
OS Type	iOS
Version	26.1 beta
Build ID	23B5073a
Release Date	October 20, 2025
Signing Status	Unsigned Status last checked April 16, 2026.
Filename	iPhone18,4_26.1_23B5073a_Restore.ipsw
File Size	10.69 GB
Download URL	https://updates.cdn-apple.com/2025FallSeed/fullrestores/093-85885/B25A0EB6-20A0-4496-A74E-AD4938115135/iPhone18,4_26.1_23B5073a_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.

This version is not currently signed by Apple. Installation will fail unless you have saved SHSH blobs and are using futurerestore.

Other Versions for this Device

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