Home / Mac / iMac (24-inch, M3, 2023, Four Ports) / macOS 15.1 RC (24B83)
Device

macOS 15.1 RC

Build 24B83
Currently Signed
iMac (24-inch, M3, 2023, Four Ports) Mac15,5
Released
October 24, 2024
File Size
15.74 GB
Filename
UniversalMac_15.1_24B83_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 iMac (24-inch, M3, 2023, Four Ports) (Mac15,5)
OS TypemacOS
Version15.1 RC
Build ID24B83
Release DateOctober 24, 2024
Signing Status Signed
Status last checked March 12, 2026. Verify at IPSW.dev
Filename UniversalMac_15.1_24B83_Restore.ipsw
File Size15.74 GB
Download URL https://updates.cdn-apple.com/2024FallFCS/fullrestores/072-12340/78D28AC4-CCFC-45D2-BD27-1E5D915E43F9/UniversalMac_15.1_24B83_Restore.ipsw

Installation Instructions

How to install this firmware

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

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