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FIRMWARE DETAILS

iOS 18.4

Build: 22E240Mar 31, 2025Delta OTA
Release CandidateStable

View details

Filename
4c42ec3357d6fffd621476d2f5fd640ff720560f.zip
File size
4.21 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
6f88855567bd9ac6341c5f76eae0f143e7f4cd944ecad941a1befc51d822fbb3
SHA-1
4c42ec3357d6fffd621476d2f5fd640ff720560f
Required starting builds
21B101, 21B74, 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.

Compatible hardware (1)

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%3B22E240-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:26 PM UTC
Record fingerprint: af6c14cdea389e430af57df46c359c4d

AppleDBhttps://api.appledb.dev/ios/iOS%3B22E240.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:26 PM UTC
Record fingerprint: 58f3ccccbe04c9559a5f267b66bdf03b