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FIRMWARE DETAILS

iOS 17.7

Build: 21H16Sep 16, 2024Full OTA
Release CandidateStable

View details

Filename
ea4ff6b511a8020763d974cc73f8cf30fed0dc3b.zip
File size
5.91 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
378ecc489ccd8ffc03c84e892175b5dd879b632709b2b89f3fa5da8bf74fdcce
SHA-1
9865c11cd8d491b2cf26eca3f3fe559468ed3858
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%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