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FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Full OTA
Stable

View details

Filename
b9236a4e326b8d868d306fff53494057e6f8dbcb.zip
File size
5.92 GB
File type
Full OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
09df5ef7ef9600459d907b87a7dda877a465eff187de3030d6d3d08c65c8b709
SHA-1
2eeb8675c4f7cc7f2ae7c64f9be3a2a07b5adb54
Required starting builds
Not reported
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