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FIRMWARE DETAILS

iOS 17.7

Build: 21H16Sep 16, 2024Delta OTA
Release CandidateStable

View details

Filename
59f34725a304338f920399491d1441e16d14ea2c.zip
File size
3.45 GB
File type
Delta OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
8da70e9bd2b93102f0fd27c0a08c850e50cbfcd86dd41cd6b13c024d72815116
SHA-1
7d0f69a319b6bec4dd092629557ab65ffe5d0d90
Required starting builds
20G75, 20G81
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%3B21H16-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: c8b3b02ce4311c79f2853199085cf330

AppleDBhttps://api.appledb.dev/ios/iOS%3B21H16.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: ae79657c71a1de572003507c6b1f785c