Apple Mac Studio (M1 Max) macOS 27.0 beta 4 IPSW firmware
Apple Mac Studio (M1 Max)
Signed
macOS 27.0 beta 4
Build 26A5388g For Mac13,1, J375cAP
Global · IPSW
A newer version is available for this region: macOS 27.2 beta 4
Download
21.1 GB
Downloads from updates.cdn-apple.com.
File details
- OS
- macOS 27.0 beta 4
- Region
- Global
- Type
- IPSW
- Install with
- How to restore a Mac with Apple silicon (IPSW)
- Released
- Size
- 21.1 GB
- File name
UniversalMac_27.0_26A5388g_Restore.ipsw- SHA-1
f5ea829dff51d3680b62224c67690bd5f23c1086- SHA-256
4e52b0122c11ed09494c9f70c58b83d71933c6afd9980748813dbdcd575b84af
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: Mac13,1, J375cAP. 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)