FIRMWARE DETAILS

iOS 26.5.1

Build: 23F81Jun 1, 2026Restore IPSW

Stable

View details

Filename: iPhone18,3_26.5.1_23F81_Restore.ipsw
File size: 11.35 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: afaf1012ff57bcee438c98ae49825167bf643921037c1acab10507e588c195f2
SHA-1: 602258b77dabf46353051ab85edbc2263ca570e5
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 17 iPhone18,3IPSW.me public API retrieval · Oct 20, 2026, 3:43 PM 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%2C3?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 0071615c31c226d8c35a4639f9b88a1a

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

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