FIRMWARE DETAILS

iOS 26.5.1

Build: 23F81Jun 1, 2026Restore IPSW

Stable

View details

Filename: iPhone18,2_26.5.1_23F81_Restore.ipsw
File size: 11.30 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: 4154f36420bf2f22f0d3ce58cbf23221306795f86f1b7d3e880b4cf9f997137a
SHA-1: 06a56a9f679a41e9625b712c695bb42d362f71d1
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 17 Pro Max iPhone18,2IPSW.me public API retrieval · Oct 23, 2026, 12:14 AM UTC

Unsigned

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

IPSW.mehttps://api.ipsw.me/v4/device/iPhone18%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 2a25dd510704f5e010def4e672a9b278

AppleDBhttps://api.appledb.dev/ios/iOS%3B23F81.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:25 PM UTC
Record fingerprint: 5c942573abf0119b4e5bd563e9638914