FIRMWARE DETAILS

iOS 17.6.1

Build: 21G101Aug 19, 2024Delta OTA

Stable

View details

Filename: 926ce0b970cfc60ca027ad3f913c59c502160f95.zip
File size: 3.53 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: 9773fe5c8783406a939bc410ffb16b5f9ff66c5bc7b138effe646f06ca8929de
SHA-1: b49d4a1d44cd2c3af0c4bffa01fa4f68159bb461
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 XS iPhone11,2

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