FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Full OTA

Stable

View details

Filename: 581f3570f2c99dad5ced2be6e72179de748e9364.zip
File size: 5.76 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: dfb507e0439cadf0138abae45bb5d35da298af077537a9409ad2f466cdc242ae
SHA-1: d2a366d990c5e40e56a6e80fd600bcbc1c8139a5
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 (1)

iPhone 11 iPhone12,1

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