iMac 24-inch (M1, Two Ports, 2021)

macOS 13.5.2 (22G91) for iMac 24-inch (M1, Two Ports, 2021)

Signed — can be installed Released Sep 7, 2023 iMac21,1

Download IPSW

UniversalMac_13.5.2_22G91_Restore.ipsw

12.01 GB
Download macOS 13.5.2

The file is downloaded directly from Apple’s servers (updates.cdn-apple.com). Large files download faster with a download manager or curl -O.

Verify the file

SHA256
6891aee0ab0b96695ef16fa53f06bdeda4106f68de516671984eb46ad2e0e3b8
SHA1
699cc7ce2477708b2af91dee53ca5373f25461af
MD5
f0b83a52efb553fb058bb42481a51e7d

On a Mac: shasum -a 256 UniversalMac_13.5.2_22G91_Restore.ipsw · On Windows: certutil -hashfile UniversalMac_13.5.2_22G91_Restore.ipsw SHA256

Firmware details

Version
macOS 13.5.2
Build
22G91
Released
September 7, 2023
Uploaded
September 2, 2023
File size
12.01 GB (12,892,043,230 bytes)
Signing
Signed

Device

Identifier
iMac21,1
Board
J456AP
Platform
t8103
CPID
0x8103
BDID
0x28

How to install macOS 13.5.2 with this IPSW

  1. Back up your iMac 24-inch (M1, Two Ports, 2021) to iCloud or your computer — restoring erases the device.
  2. Turn off Find My in Settings → [your name] → Find My.
  3. Connect the device with a cable and open Finder (macOS Catalina or later) or Apple Devices / iTunes (Windows).
  4. Hold Option (Mac) or Shift (Windows) and click Restore. Choose UniversalMac_13.5.2_22G91_Restore.ipsw.
  5. Wait — the device restarts several times. Don’t disconnect it until you see the Hello screen.

Stuck on the Apple logo? Put the device into recovery mode first, then restore.

Build 22G91 is also available for

Mac Pro (2023) Mac Studio (M2 Ultra, 2023) Mac Studio (M2 Max, 2023) MacBook Air (15-inch, M2, 2023) MacBook Pro (M2 Pro, 16-inch, 2023) Mac mini (M2 Pro, 2023) MacBook Pro (M2 Pro, 14-inch, 2023) MacBook Pro (M2 Max, 16-inch, 2023) MacBook Pro (M2 Max, 14-inch, 2023) Mac mini (M2, 2023) MacBook Pro (13-inch, M2, 2022) MacBook Air (M2, 2022) Apple Virtual Machine 1 Mac Studio (M1 Ultra) Mac Studio (M1 Max) MacBook Pro (M1 Max, 14-inch, 2021) MacBook Pro (M1 Pro, 16-inch, 2021) MacBook Pro (M1 Pro, 14-inch, 2021) MacBook Pro (M1 Max, 16-inch, 2021) iMac 24-inch (M1, Four Ports, 2021) Mac mini (M1, Late 2020) MacBook Air (M1, Late 2020) MacBook Pro (M1, Late 2020)

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