firmwarehub.
العربية
FIRMWARE DETAILS

iOS 17.1

Build: 21B74Oct 25, 2023Full OTA
Release CandidateStable

View details

Filename
ed8330227bc76c8cf054582380448c3952189800.zip
File size
5.82 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
67999ac08d225412440d7dbc05cf18ab06ccbc107af71e1ef80a019d6da53e29
SHA-1
870eb443f1706f94bdbe8e1961df8410f7ab702b
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 XR iPhone11,8
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%3B21B74.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: ce1037df7218db6f4121eac6e89afc29

AppleDBhttps://api.appledb.dev/ios/iOS%3B21B74-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 596792c64544009bb3cdf2ce13596537