FIRMWARE DETAILS

iOS 17.6.1

Build: 21G101Aug 19, 2024Delta OTA

Stable

View details

Filename: a342aaf73d9f2056a0c1a018adb7ede0b1f52d45.zip
File size: 3.69 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: 60cf2bd5359038ba4117f0c7d79d2b3fe78aeec4ca49814c77d8b94dda81d468
SHA-1: fc089e96667b5c44c2d43a31195a5be9e003096f
Required starting builds: 20F66, 20F75
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%3B21G101.json ↗

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