FIRMWARE DETAILS
iOS 17.7
Build:
21H16Sep 16, 2024Delta OTARelease CandidateStable
View details
- Filename
888beae3f1f6e76fb5b638909b2d4ebd34544d41.zip- File size
- 4.50 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
3eecf40c592380ebf70d79538b64dc8bcf7476a686e00dbe4fa20934f00a9937- SHA-1
85bdb45d62ed94422d0f373fafafdc84630caa55- Required starting builds
19C56, 19C63- 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 Max
UnknowniPhone12,5Signing 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%3B21H16-RC.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: c8b3b02ce4311c79f2853199085cf330
AppleDBhttps://api.appledb.dev/ios/iOS%3B21H16.json ↗
MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: ae79657c71a1de572003507c6b1f785c