FIRMWARE DETAILS

iOS 18.3.1

Build: 22D72Feb 10, 2025Delta OTA

Stable

View details

Filename: c3f2746dac1ede5d44841f5fa31cc4dbd5959031353a5be2efdc0c307da77cfe.aea
File size: 4.36 GB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: b10e34921d30ea3ea39cd7d2adab0b12dbc5be218f847df79336fb6108e46b90
SHA-1: ccc31abc23d7be13fa79f3846da30d03c8c39915
Required starting builds: 21G101, 21G79, 21G80, 21G93
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

iPhone 15 iPhone15,4

Unknown

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

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 3aa1b12ab32d61552bc2075797d3a0f8