FIRMWARE DETAILS

iOS 18.3.1

Build: 22D72Feb 10, 2025Restore IPSW

Stable

View details

Filename: iPhone15,4_18.3.1_22D72_Restore.ipsw
File size: 8.92 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: efea57a547e0377dd7bf0071a47339887ea996916c28a5b0795758c6cf2d649b
SHA-1: 387fa8b52e811e7ca77ab3ca0c73aa5fc1a98caa
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 15 iPhone15,4IPSW.me public API retrieval · Oct 23, 2026, 4:38 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%3B22D72.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 3aa1b12ab32d61552bc2075797d3a0f8

IPSW.mehttps://api.ipsw.me/v4/device/iPhone15%2C4?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: a5c51ff2b66420e1cc8a21057dc13fef