FIRMWARE DETAILS

iOS 26.1

Build: 23B85Nov 3, 2025Delta OTA

Stable

View details

Filename: fbb27e27a2c3730f7139ee947b9a83c2fcd99ffa945a0f36eb36f1cd3a809765.aea
File size: 377.5 MB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: f750324d31187eff0937f0f94a5fd71ce9b50bfa7dfeacc46c5cc6abea7eedd4
SHA-1: 5bf29e761ab49faa0538ae92d8c49f1b48900965
Required starting builds: 23B82
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

iPhone Air iPhone18,4

Unknown

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

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:26 PM UTC
Record fingerprint: 3dbb73a9b79f5a62bd0e694ba85d5e21