FIRMWARE DETAILS

iOS 17.5 beta 4

Build: 21F5073bApr 30, 2024Delta OTA

Beta

View details

Filename: bc70ae7eb0a7ed61c9e1b91ad0d7917feba83a75.zip
File size: 543.1 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: df494bbe4c4c4ca95f19e0c7b538344f185cd40f86f2d69141fd6d9c40b594eb
SHA-1: 26c5476fdfd6f15e4a0fffb577287c7ec21e1243
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 14 Pro iPhone15,2

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%3B21F5073b.json ↗

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