FIRMWARE DETAILS

iOS 18.4.1

Build: 22E252Apr 16, 2025Delta OTA

Stable

View details

Filename: a6e64f081f6c188cd80f3bcd0e2a93df2b26e82c.zip
File size: 4.05 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: fcb3601044594eb9aef3f7ba32aec18e19049aecba7b203f4e064604ca5678b1
SHA-1: a6e64f081f6c188cd80f3bcd0e2a93df2b26e82c
Required starting builds: 21F101, 21F79, 21F90
Board restrictions: Not reported

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

Compatible hardware (1)

iPhone 11 Pro iPhone12,3

Unknown

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

Source provenance

AppleDBhttps://api.appledb.dev/ios/iOS%3B22E252.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:26 PM UTC
Record fingerprint: c0dcb321fa693604d7b867c4fca4fcff