FIRMWARE DETAILS

iOS 17.5.1

Build: 21F90May 20, 2024Restore IPSW

Stable

View details

Filename: iPhone14,3_17.5.1_21F90_Restore.ipsw
File size: 8.02 GB
File type: Restore IPSW
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 2b721ca9a419ebc03f81fddc4a630a9d7263c06db9dd98891c4e6f9d5ea47a4a
SHA-1: 19a678c7d65ce0f2f3440d12fa0adfe99d2be9ba
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 13 Pro Max iPhone14,3IPSW.me public API retrieval · Oct 21, 2026, 4:12 PM UTC

Unsigned

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

IPSW.mehttps://api.ipsw.me/v4/device/iPhone14%2C3?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 6a4dcbe28d3b21bc9fac6e0683713d37