FIRMWARE DETAILS

iOS 18.7.1

Build: 22H31Sep 29, 2025Delta OTA

Stable

View details

Filename: 450d798676ef9d5993ca6ea65f1834591b28c91bb40705d62299c738f86847bc.aea
File size: 4.90 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: 19f674734390d472ffa9815c1a0e24995971774deb46845eed555c9d344f509c
SHA-1: 662d320c5e9c8c03e6f156351c7bc31e7924f61f
Required starting builds: 21B101, 21B74, 21B80, 21B91
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, 6:26 PM UTC
Record fingerprint: 5a74f855a29314d5aaed8c2a30a9940d