FIRMWARE DETAILS

iOS 17.1.1

Build: 21B91Nov 8, 2023Restore IPSW

Stable

View details

Filename: iPhone12,1_17.1.1_21B91_Restore.ipsw
File size: 7.32 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: 2fdbdda2f1ebd49878f7735e6bdc48ec694753bb6aff6b271dd666705698aa29
SHA-1: cb5c7b12cc5be4e913909ad2612e3fcc577ca6be
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 11 iPhone12,1IPSW.me public API retrieval · Oct 23, 2026, 4:05 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/iPhone12%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: f2b3b010d96687fbb16e1fb9caf94a7b

AppleDBhttps://api.appledb.dev/ios/iOS%3B21B91.json ↗

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