FIRMWARE DETAILS

iOS 17.1.2

Build: 21B101Nov 30, 2023Restore IPSW

Stable

View details

Filename: iPhone16,2_17.1.2_21B101_Restore.ipsw
File size: 8.21 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: 528e8aad8b0a1f3a8f1cff5ccdf6e09884c13741a41a54b047dcf7279b5697f4
SHA-1: 23338c9a6e3b454f60b7e9e20c4a63dc11f49e69
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 15 Pro Max iPhone16,2IPSW.me public API retrieval · Oct 23, 2026, 8:49 PM UTC

Unsigned

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%3B21B101.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 4f30a5cce34598c7be862eafa91e271b

IPSW.mehttps://api.ipsw.me/v4/device/iPhone16%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: d737290b10c570baae7c6be5286b184f