FIRMWARE DETAILS

iOS 17.0 beta 4

Build: 21A5291jJul 31, 2023Delta OTA

Beta

View details

Filename: 4aa59ca1410abd106dee32ed49eee0bbc04bc27d.zip
File size: 2.91 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: d46d01f3c9f17cbdecb9d63a67f854e406f12e2e7e381ed33ac620314aecf058
SHA-1: d9195b5e6b72ef5cb47963b2dd19f4cf3fad80c7
Required starting builds: 20G5070a
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 XS iPhone11,2

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