FIRMWARE DETAILS

iOS 17.0 beta 4

Build: 21A5291jJul 31, 2023Full OTA

Beta

View details

Filename: 9551b4547309f86353c80cd7f93e6eab1b5933dd.zip
File size: 5.65 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 73098ec005bebd84cd7e39d0cd85c8e175c47942b866cca4dcff617034c179cb
SHA-1: 9db77dacdcbc2d28536bf79d9d12c4a26f6cc9c4
Required starting builds: Not reported
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)

iPhone SE (2nd generation) iPhone12,8

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%3B21A5291j.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 1a482bda17ccfbe4995fdb9086fbae7f