firmwarehub.
العربية
FIRMWARE DETAILS

iOS 17.7.1

Build: 21H216Oct 28, 2024Delta OTA
Release CandidateStable

View details

Filename
77515743fc83d0b05fe11e15c4ccebf53f3c06a9.zip
File size
274.6 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
299d938dff161ed3b6d02b711212c66ebb3ab1f766895f83796755337a012e6e
SHA-1
b94c5271f2255499f19ecb09e392a86c5fbcc4b2
Required starting builds
21H16
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 13 iPhone14,5
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%3B21H216-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: e81d7c9fd3ed4ef3917cac95ad2b8b45

AppleDBhttps://api.appledb.dev/ios/iOS%3B21H216.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 8bcbb794adc258f42e682d442c6740ea