FIRMWARE DETAILS

iOS 17.5 beta 4

Build: 21F5073bApr 30, 2024Full OTA

Beta

View details

Filename: a83bf2abc1c3dae502cd6de5a14382241c78b39b.zip
File size: 6.07 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: 40f735f27f326b527f8d5e288ab6f31de51bf791b7143e4445ce5b2bc60daba1
SHA-1: f17a194623e37cbfb5ade7cf7c765a71acdcad88
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 (3)

iPhone XS iPhone11,2

Unknown

iPhone XS Max iPhone11,6

Unknown

iPhone XS Max (China mainland) iPhone11,4

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%3B21F5073b.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: e511979c038b1b785b73b05746d99ae6