FIRMWARE DETAILS

iOS 17.5 beta 4

Build: 21F5073bApr 30, 2024Delta OTA

Beta

View details

Filename: 308c23eaf5ed5dfb8cb23478735d9ab48197420a.zip
File size: 501.0 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: ed2bae04bce90d0ae913772519258c840820af5c8196d5221cb46ac8f2216e28
SHA-1: 5f44811b0e28e385c764541c084478ccf45603f1
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 13 iPhone14,5

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