FIRMWARE DETAILS

iOS 17.7.2

Build: 21H221Nov 19, 2024Delta OTA

Stable

View details

Filename: bb4dd322a6e027bb7b137dc33e1256ce3ae3c5c7.zip
File size: 3.87 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: 5bae9a799cf6a54fc21c79d5e7ea8505a017abbab6f14dd5bc0e73e34bc93c70
SHA-1: 5f7b964e3cd55994dcc3a61250ee9be16263129d
Required starting builds: 20B101, 20B110, 20B82
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 11 Pro iPhone12,3

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