FIRMWARE DETAILS

iOS 17.5.1

Build: 21F90May 20, 2024Restore IPSW

Stable

View details

Filename: iPhone15,2_17.5.1_21F90_Restore.ipsw
File size: 8.11 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: 7efbd595572cd8962fb6d1e284364b466883b0f739af7d248e878b14820713da
SHA-1: 5e628e355bb7f873c41995c0c6758f7dd0c96835
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 14 Pro iPhone15,2IPSW.me public API retrieval · Oct 20, 2026, 5:42 AM 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/iPhone15%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: ebb119e0a183ad99c91c964549069e5f