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FIRMWARE DETAILS

iOS 17.0 beta 4

Build: 21A5291hJul 25, 2023Delta OTA
Beta

View details

Filename
a3c7a03d1cf6fcdaeede0b2ee6c938e97e03c81f.zip
File size
1.11 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
a9a76c223793a5233c734729a790143881e1abc35bb4270f51c6b6f4aa51dca2
SHA-1
a960239f76341686ab5d5fdaa8916d55b8d6555c
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