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FIRMWARE DETAILS

iOS 17.4 beta 4

Build: 21E5209bFeb 20, 2024Delta OTA
Beta

View details

Filename
651e72100848c5938436e699e0cf2032643b086b.zip
File size
674.5 MB
File type
Delta OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
935ee6f1fde63ad63ce05a933c859a11afae720caad189f3d23d1b5be3be0c30
SHA-1
bbda9f6927a5d8bab088b87a1bc29551a10b56ed
Required starting builds
21E5200d
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%3B21E5209b.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: fe63c79b1c14a24f0f284bf400b7ab04