FIRMWARE DETAILS

iOS 17.3.1

Build: 21D61Feb 8, 2024Full OTA

Stable

View details

Filename: af596eec2e2430842ef04098e59238abe2b30e08.zip
File size: 6.03 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: 08cb78d3295e450a8b4cae6c57a4d16756defe6b33fc26d97735969887782dd0
SHA-1: 967a6f7ca5c3e22e57a8b610a1fc6deba5bbec78
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%3B21D61.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: caa4c3b8f1108221a1cf4826799a13ca