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FIRMWARE DETAILS

macOS 12.3

Build: 21E230Mar 14, 2022Restore IPSW
Stable

View details

Filename
UniversalMac_12.3_21E230_Restore.ipsw
File size
13.87 GB
File type
Restore IPSW
Download host
updates.cdn-apple.com
Link availability
Not verified

Source did not report availability

Last link check
Not checked
SHA-256
0ceb505082b254d14a7eef406b48671c0abd7c943d25fa75ea2807ea17504006
SHA-1
b9e895b403586591040864d23643132c20ca7913
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (2)

Mac Studio (M1 Max) Mac13,1IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown
Mac Studio (M1 Ultra) Mac13,2IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

IPSW.mehttps://api.ipsw.me/v4/device/Mac13%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:18 PM UTC
Record fingerprint: 70bcf6c6b28c5ffbc10855164ac8db75

IPSW.mehttps://api.ipsw.me/v4/device/Mac13%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:18 PM UTC
Record fingerprint: 996aba2fb3b2ba499acf1d86c51f6a6a