Apple MacBook Pro (M2 Max, 16-inch, 2023) macOS 27.0 firmware

Apple MacBook Pro (M2 Max, 16-inch, 2023) Signed
macOS 27.0

Build 26A428 For Mac14,6, J416cAP

Global · IPSW

A newer version is available for this region: macOS 27.2 beta 4

Download 24.8 GB

Downloads from updates.cdn-apple.com.

File details

OS
macOS 27.0
Region
Global
Type
IPSW
Released
Size
24.8 GB
File name
UniversalMac_27.0_26A428_Restore.ipsw
MD5
d5a1f2c4dcb9b0ed974554c67aa6a4a1
SHA-1
2d17f2fe0d7726dd66f0522fdb9ad162942c3f3d
SHA-256
2a5d3c695d501022b7fad9adaffcf2627bcb867d993fb5662dcd41bac99a2836

After downloading, compare the checksum with the one above. If they differ, the file is incomplete — download it again.

Before you download

  • Make sure your device’s model number is one of: Mac14,6, J416cAP. You will find it in Settings → About phone, or on the box.
  • This file is for the Global region. Installing another region’s firmware can remove features or block updates.
  • Apple devices can only restore versions marked “Signed”.
  • Back up your photos, contacts and files first, and charge the battery above 50%.

How to install

Macs with Apple silicon (M1 and newer) and Intel Macs with a T2 chip can be restored from an IPSW using a second Mac and Apple Configurator. This reinstalls the firmware and macOS and erases the Mac.

Read the guide: How to restore a Mac with Apple silicon (IPSW)

Other Apple MacBook Pro (M2 Max, 16-inch, 2023) versions

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