FIRMWARE DETAILS

iOS 17.5.1

Build: 21F90May 20, 2024Full OTA

Stable

View details

Filename: f06e582d9114417996bb26f8f324eabd21f20508.zip
File size: 6.29 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 60293033b573751a16904a66ce5ff1831d01a81c5ba2e2db99e6c20062490eae
SHA-1: 90e02598e65c90db1032c33b07f35b5d2d073d21
Required starting builds: Not reported
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 Pro iPhone14,2

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%3B21F90.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 1ae039bd01274135bfccfb7ce06a0234