FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Delta OTA

Stable

View details

Filename: 0d44f4f93c861225931487d2e2473fe1c51d7e90.zip
File size: 1.68 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: abb63dda70d8a7fe0dc304b78d3e6d1508f032dfab66b4dc65d98d34363c86ed
SHA-1: baeac27a948afdcb4d90992f80f5392715092242
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 XR iPhone11,8

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