FIRMWARE DETAILS

iOS 17.1.1

Build: 21B91Nov 8, 2023Full OTA

Stable

View details

Filename: 411db893b2940b3cc9a7b7b64781e2332917c539.zip
File size: 6.17 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 67fb7c6b20dd551d6d7f446e73d730b27e18b888652364e223b1c46c5803993f
SHA-1: 986d21d8afe3a817cddcbf991ca4d9211d5e7383
Required starting builds: Not reported
Board restrictions: Not reported

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

Compatible hardware (1)

iPhone 13 mini iPhone14,4

Unknown

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%3B21B91.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 920b0a70bb6d0ccadee92018f5db3f40