FIRMWARE DETAILS

iOS 17.4 RC

Build: 21E217Feb 27, 2024Full OTA

Release Candidate

View details

Filename: c62c28c195f92dbc4a8314d34008e854ddb2f837.zip
File size: 6.03 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: c8706ee74b882cfe406b084c180a788bc6724b95bc23831c5b37722f52384311
SHA-1: 67d1ef1b4893a08c298fa54df2b660854a749bb4
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 iPhone11,2

Unknown

iPhone XS Max iPhone11,6

Unknown

iPhone XS Max (China mainland) iPhone11,4

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%3B21E217.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: c0cbd73a7018633fa09ab870ccf9000c