FIRMWARE DETAILS
iOS 17.7.1
Build:
21H216Oct 28, 2024Delta OTARelease CandidateStable
View details
- Filename
9dbd86e350b253e7c11394b8797970c8f43f33c0.zip- File size
- 3.52 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
aca4da3de1607e960ee77f8dc22c8c7cd10f015d3c67c9af03ca0c8506668eb9- SHA-1
4277f4d0b23ac85b5e95f4e4469316b55ea4cf53- Required starting builds
20G75, 20G81- 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 Max
UnknowniPhone11,6Signing 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%3B21H216-RC.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: e81d7c9fd3ed4ef3917cac95ad2b8b45
AppleDBhttps://api.appledb.dev/ios/iOS%3B21H216.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: 8bcbb794adc258f42e682d442c6740ea