FIRMWARE DETAILS
iOS 17.5
Build:
21F79May 13, 2024Delta OTARelease CandidateStable
View details
- Filename
724fd639c519b08f88b6a53a2f93f8999b7c22db.zip- File size
- 4.61 GB
- File type
- Delta OTA
- Download host
updates.cdn-apple.com- Link availability
- Not verified
Source reports active
- Last link check
- Not checked
- SHA-256
53fd548ab0cf6a155cf2e2a3e9c9d766719b2abd65afc6081967996b76b2d11f- SHA-1
7b8d7931408722d21fb9fc016f28605474eada97- Required starting builds
19C56, 19C63- 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
UnknowniPhone11,6Signing 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%3B21F79.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: fad1f444ed45a9b0b4e75442c2a737cc
AppleDBhttps://api.appledb.dev/ios/iOS%3B21F79-RC.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 2cce62a34025b5a2ae1d1605ae45809f