FIRMWARE DETAILS

iOS 17.6.1

Build: 21G101Aug 19, 2024Delta OTA

Stable

View details

Filename: 9b787d7bb07f706e4fa793db04c02b5e9e385185.zip
File size: 3.91 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: 6eaca5489b3148ff0e3c81da862260dd41866e74c91d82f9ad793cdacd2ac108
SHA-1: 6f9ce853d8e6acb6156a089cfac00899528b8130
Required starting builds: 20C65, 20D47, 20D67
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%3B21G101.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: fa83dae98379e752d48badccb601c2fa