FIRMWARE DETAILS

iOS 18.4.1

Build: 22E252Apr 16, 2025Delta OTA

Stable

View details

Filename: 380ad77d839edc903bacfc979b50a68d79533695fb9422543642ee3f57355f77.aea
File size: 4.56 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: 840324bcd9971e7f0fce6082a5586a9fb36542d0cded1ed53d3c545a8cfe7dc5
SHA-1: 7895313c728369b970786b174a2cad0b77c59b1f
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.

iPhone 15 Pro iPhone16,1

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, 6:26 PM UTC
Record fingerprint: c0dcb321fa693604d7b867c4fca4fcff