FIRMWARE DETAILS

iOS 17.5 beta 4

Build: 21F5073bApr 30, 2024Delta OTA

Beta

View details

Filename: f5f979dd3c376b59394b77a5ca3d2106a87ee5f8.zip
File size: 816.8 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: 8d5bb3a16af35c4a3b228ad70706c8019f4319d589d590f15c2fbb0e555ec34d
SHA-1: deebb8e8a67d43afc5463bba6c52ecf4c1a1d199
Required starting builds: 21E5209b
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 12 mini iPhone13,1

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