FIRMWARE DETAILS

iOS 17.5 beta 4

Build: 21F5073bApr 30, 2024Delta OTA

Beta

View details

Filename: df3197cac641d95246b1e8504c553cbb96750e1e.zip
File size: 436.5 MB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: f40f3470118d4c7fdf8fcfb86d729b5eec2e8bda34a195d9ac639cef57a84c05
SHA-1: 53ffdb2c179b02070ea38c615e6a3b64af4ae356
Required starting builds: 21F5063f
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 Max iPhone11,6

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