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FIRMWARE DETAILS

iOS 17.4 beta 4

Build: 21E5209bFeb 20, 2024Delta OTA
Beta

View details

Filename
4dac8d54fd2ac96925548c39a0dbba7b050d1ca6.zip
File size
495.4 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
a1cb0601cd183d336d47bce9d8b6fb57f01c74d27869fa1dab62084cd8c40026
SHA-1
37b6699516e60be2bd14cf07818ec2c8b0064359
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