MacBook Pro (M1 Max, 14-inch, 2021) MacBookPro18,4

IPSW Signed 22G91

macOS 13.5.2

macOS

Version

13.5.2

Build ID

22G91

File Size

12.01 GB

Release Date

2023-09-07

Last Updated

2023-09-02

Download IPSW

Beta firmware? Download Here →

About This Firmware

macOS 13.5.2 (build 22G91) is an official Apple IPSW for the MacBook Pro (M1 Max, 14-inch, 2021), released on 2023-09-07. The file is served directly from Apple's CDN. This firmware is currently signed by Apple, so it can be used to restore or update your device via iTunes or Finder.

Verify the download using the SHA-256 or SHA-1 checksum listed in the Checksums section below.

Filename

UniversalMac_13.5.2_22G91_Restore.ipsw

Checksums

SHA-256 6891aee0ab0b96695ef16fa53f06bdeda4106f68de516671984eb46ad2e0e3b8

SHA-1 699cc7ce2477708b2af91dee53ca5373f25461af

MD5 f0b83a52efb553fb058bb42481a51e7d

Direct URL

https://updates.cdn-apple.com/2023SummerFCS/fullrestores/042-43686/945D434B-DA5D-48DB-A558-F6D18D11AD69/UniversalMac_13.5.2_22G91_Restore.ipsw

Other Devices

MacBook Pro (M1 Pro, 14-inch, 2021)

MacBook Pro (M3 Pro, 16-inch, Nov 2023)

Mac15,7

MacBook Pro (M1, Late 2020)

MacBookPro17,1

iMac (Four Ports, 24-inch, 2024)

Mac16,3

How to Restore with This IPSW

iTunes / Finder

macOS & Windows

Download the .ipsw file to your computer.
Connect your MacBook Pro (M1 Max, 14-inch, 2021) via USB.
Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
Wait for the process to finish - do not disconnect.

Restoring will erase all data on the device. Back up first.

3uTools

Windows

Download and install 3uTools from 3u.com.
Connect your MacBook Pro (M1 Max, 14-inch, 2021) via USB and trust the computer on the device.
Go to Flash & JB → Easy Flash.
Click Import and select the downloaded .ipsw file.
Choose Flash mode: Update keeps data, Restore wipes the device.
Click Flash and wait for the progress bar to complete - do not disconnect.

Only flash firmware that matches your exact device model.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or iTunes/Finder does not recognise it, enter DFU mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

Quickly press & release Volume Up
Quickly press & release Volume Down
Hold Side button until screen goes black
Hold Side + Volume Down for 5 s
Release Side, hold Volume Down 5 more s
Black screen = DFU active

iPhone 7 / 7 Plus

Hold Sleep/Wake + Volume Down for 8 s
Release Sleep/Wake, keep holding Volume Down for 5 s
Black screen = DFU active

iPhone 6s and earlier

Hold Sleep/Wake + Home for 8 s
Release Sleep/Wake, keep holding Home for 5 s
Black screen = DFU active