FIRMWARE DETAILS

iOS 17.2.1

Build: 21C66Dec 19, 2023Restore IPSW

Stable

View details

Filename: iPhone14,5_17.2.1_21C66_Restore.ipsw
File size: 7.71 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: bb01ffdb242d93f7f6b562eb1bbe99361eef6e04e63de39d38bd3a41d51518a4
SHA-1: 83a8e0c331e3342ba66eb17aad8a10a132b01aaf
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 13 iPhone14,5IPSW.me public API retrieval · Oct 22, 2026, 3:44 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/iPhone14%2C5?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 4f37ddd26c9329c1bdb33f391040dc47

AppleDBhttps://api.appledb.dev/ios/iOS%3B21C66.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: d446c7f095cdf40f999162af3ba1751c