FIRMWARE DETAILS
iOS 17.7.1
Build:
21H216Oct 28, 2024Full OTARelease CandidateStable
View details
- Filename
a8a0fc6b3e3c23d89faac9d51ace0c15e7194388.zip- File size
- 6.08 GB
- File type
- Full OTA
- Download host
updates.cdn-apple.com- Link availability
- Not verified
Source reports active
- Last link check
- Not checked
- SHA-256
4f2061bda2d7b1372534064d9f8e79ec9aa957a6d0bd664293bcd49edd1e1dbe- SHA-1
e0d75c7922c85782cc675705a40abf5d6af5db5b- Required starting builds
Not reported- 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 (3)
iPhone XS
UnknowniPhone11,2iPhone XS Max
UnknowniPhone11,6iPhone XS Max (China mainland)
UnknowniPhone11,4Signing 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