FIRMWARE DETAILS

iOS 17.7

Build: 21H16Sep 16, 2024Delta OTA

Release CandidateStable

View details

Filename: 2b77705b02bf667bb00cf243b02e41107838a789.zip
File size: 4.58 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: 1bfecc60d84953baa2d2e24ee7f460079b3ffbac78c9755292a3de3c95953380
SHA-1: fa1ce07a621a9d00cdc89ad2c63868039dbe4fe4
Required starting builds: 19F77, 19G71, 19G82
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 SE (3rd generation) iPhone14,6

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