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FIRMWARE DETAILS

iOS 17.7.2

Build: 21H221Nov 19, 2024Delta OTA
Stable

View details

Filename
4bbfef1100b45b38fc909e10ef72c2ab11ea1968.zip
File size
658.9 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
b70d46067ac2cd9a3c0fd8507f452789774673c83fae2e57b98db087936d08e7
SHA-1
c1a4932736c187bc8acb884ae6e7a3e50d39c1f3
Required starting builds
21G101, 21G79, 21G80, 21G93
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)

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%3B21H221.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 346e1c45f7ddd8916eb8bb86f371980e