FIRMWARE DETAILS

iOS 17.2.1

Build: 21C66Dec 19, 2023Restore IPSW

Stable

View details

Filename: iPhone14,7_17.2.1_21C66_Restore.ipsw
File size: 7.76 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: 0397a3c0d46e52118883dbd4c2718baf8f4ba9135b5e9577ed14d59c64581f57
SHA-1: 11af3bd8e57b511d4ef439ee58c257bd90978cbc
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 14 iPhone14,7IPSW.me public API retrieval · Oct 22, 2026, 4:27 PM 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%2C7?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 940d6b8eb00a0238949ad1ede785f236

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

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