FIRMWARE DETAILS
iOS 17.7.1
Build:
21H216Oct 28, 2024Delta OTARelease CandidateStable
View details
- Filename
eaf05e67a94299f1d174be8a069052ad3da2cc8d.zip- File size
- 1.87 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
8078f81d3aef41198151e7f5d362436b4069b7329a2a7d25c23437b244fffc98- SHA-1
88272158af2c27a747aa2072b91e1f6707bcfa1b- Required starting builds
21C62, 21C66- 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 15 Pro Max
UnknowniPhone16,2Signing 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