firmwarehub.
العربية
FIRMWARE DETAILS

iOS 17.5

Build: 21F79May 13, 2024Delta OTA
Release CandidateStable

View details

Filename
a3dbcf96dc357638898c287e979250d933764709.zip
File size
4.76 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
7f8b379b4e883c8eecea75958db5d7afa23aa6a456a4f76e8d748667d69c7a2a
SHA-1
9d204b48b0b8d222f70e46b0fb0df97546e3d85f
Required starting builds
19B74, 19B81
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%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