FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Delta OTA

Stable

View details

Filename: 6c62aabd6083b6a1200e338bc34f4e8d0e3eb91f.zip
File size: 1.85 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: 0df462e021045e7386b20d7b65a5bb2045cfe1e8c80ee97d48f2268a5b2e6291
SHA-1: c04c074ef578070d7a66f94c4aecb4c171b06e94
Required starting builds: 21A340, 21A351
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 13 iPhone14,5

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%3B21E219.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: c89b542f4c3e0674573e93f3ad0939c2