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FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Delta OTA
Stable

View details

Filename
3632541e8f7989593b05a1c78b16c0a0bfd1d463.zip
File size
2.13 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
e1693da7ee2ff3fb43437f322e6db75e5e2c9e464fd80d45fdca57f22d656e41
SHA-1
ca5cfadc4be3a119a6df65d15f6c1519310e884f
Required starting builds
21A326, 21A329, 21A360
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%3B21E219.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: c89b542f4c3e0674573e93f3ad0939c2