FIRMWARE DETAILS
iOS 17.5
Build:
21F79May 13, 2024Delta OTARelease CandidateStable
View details
- Filename
574fd03ef5bef1574aa27604aefd3c1934838c87.zip- File size
- 3.91 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
5d4bded7b3b54b046ac9bc5a69ae4025145b3612f2ccf300fb8b0a5e8fd2c5fd- SHA-1
27440e6f2b0a561e46a8d4b7d1bbcf14f388c866- Required starting builds
20C65, 20D47, 20D67- 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 11 Pro
UnknowniPhone12,3Signing 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