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FIRMWARE DETAILS

iOS 17.6.1

Build: 21G101Aug 19, 2024Delta OTA
Stable

View details

Filename
2d5fe5a1f5ee0caa077072c267c12bf768d68283.zip
File size
4.31 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
dac59cff927ce0a5724a75cbce75ccd4c601983ce59223132a85c81a48ec9794
SHA-1
fbbd06cf0cd74f62e64ea52a876f68a79b5d3605
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)

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