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FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Delta OTA
Stable

View details

Filename
a72ca0763b2e244d321ae5e8e3f064b5f0d8368f.zip
File size
4.85 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
688d54b5c2ebecd65dbc8151bc4a468060445fe7ead2cd33c976e1f54f33f59a
SHA-1
af1e64c1a47f2b94569cfde7e3df64f377ac42e3
Required starting builds
19A340, 19A341, 19A345, 19A346, 19A348, 19A404
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