FIRMWARE DETAILS

iOS 17.1

Build: 21B80Oct 25, 2023Full OTA

Stable

View details

Filename: 10756ddce1629c970954c07904014a7d01dfeb93.zip
File size: 6.33 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: 8a4cab6df8a44a31b1027d89bd39ea30b9cb57e0427075f84d95edb79e48c02a
SHA-1: fcb65a3231cf6cf203b67a3d71e7c475cc0cd336
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 15 Plus iPhone15,5

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%3B21B80.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 0c4ce2fa2e67994f9d70a827901c0dd4