FIRMWARE DETAILS

iOS 17.4 RC

Build: 21E217Feb 27, 2024Full OTA

Release Candidate

View details

Filename: 58de7d624b5ba3a8eda6a3f4454a2939f2d0eb20.zip
File size: 6.22 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: 7d6a5d13105ea748d0b9967590ec00121f001f1e75ce234ce9f4422edf79f30c
SHA-1: af1c71e5b32c38042bc60a2879e30530682cfb0c
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 (2)

iPhone 12 iPhone13,2

Unknown

iPhone 12 Pro iPhone13,3

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