How do I install tvOS 26.3 beta 3 on my Apple TV 4K (1st generation)?

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 / Apple TV / Apple TV 4K (1st generation) / tvOS 26.3 beta 3 (23K5611c)

tvOS 26.3 beta 3

Name: tvOS 26.3 beta 3 for Apple TV 4K (1st generation)
Availability: OutOfStock

Build 23K5611c

No Longer Signed

Apple TV 4K (1st generation) AppleTV6,2

Released

January 26, 2026

File Size

Filename

No firmware file found on Apple's servers

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	Apple TV 4K (1st generation) (AppleTV6,2)
OS Type	tvOS
Version	26.3 beta 3
Build ID	23K5611c
Release Date	January 26, 2026
Signing Status	Unsigned Status last checked March 10, 2026. Verify at IPSW.dev
Filename	Not available
File Size
Download URL	No file found on Apple's servers

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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