FIRMWARE DETAILS

iOS 17.2.1

Build: 21C66Dec 19, 2023Full OTA

Stable

View details

Filename: 22061d5b52a2aa503de6719e7f9cdb8eb8ee0be6.zip
File size: 6.02 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: a87caaadd2758f4e59acb7e7bfac346c3904d9e2cae182865ddea95af1d6249b
SHA-1: fd2d4ca5221863e4ad8b96a524dfc668b9b4286b
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 12 mini iPhone13,1

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%3B21C66.json ↗

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