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FIRMWARE DETAILS

iOS 17.0 beta 4

Build: 21A5291hJul 25, 2023Delta OTA
Beta

View details

Filename
b1459483ad7d2cba66bc70835e0f94b36acfea34.zip
File size
1.34 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
d0c9c9af06c7d134618c6bd08cc3a1a21dd332799fed15568924460aa1cd7003
SHA-1
a609f1edc0b1ae0ae3fe54db534610e1c143be13
Required starting builds
21A5277j
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%3B21A5291h.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: b29867d33fa2e577f08805e98a6da026