firmwarehub.
العربية
FIRMWARE DETAILS

iOS 17.1

Build: 21B80Oct 25, 2023Delta OTA
Stable

View details

Filename
7960e7efa72ec7919264d181a1e64d0e3cdfb58a.zip
File size
473.4 MB
File type
Delta OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
266e333fcd3f81333583b810dee1226cfc64a635ae67afcf60c57bc9b58a05d1
SHA-1
5be58fefa58b3733d6874bf386bf70e7c80a1adb
Required starting builds
21B77
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)

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