Apple Mac Studio (M1 Max) macOS 15.3 beta 3 firmware
Apple Mac Studio (M1 Max)
Not signed
macOS 15.3 beta 3
Build 24D5055b For Mac13,1, J375cAP
Global · IPSW
A newer version is available for this region: macOS 27.2 beta 4
Apple no longer signs this version, so a normal restore with Finder or iTunes will fail. Use a signed version unless you know you need this one.
Download
15.4 GB
Downloads from updates.cdn-apple.com.
File details
- OS
- macOS 15.3 beta 3
- Region
- Global
- Type
- IPSW
- Install with
- How to restore a Mac with Apple silicon (IPSW)
- Released
- Size
- 15.4 GB
- File name
UniversalMac_15.3_24D5055b_Restore.ipsw- SHA-1
dd48f8f5630cf3f2be6287c9a8e73ccf90813649- SHA-256
1ad3a58590ba98f379834dae800a3f41e7d3c75f62e9a6fb50c2d761e25c9f02
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)