FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Delta OTA

Stable

View details

Filename: 2dee4fd1e3c2816bd6fc2c4e4d574f40fea1ef44.zip
File size: 3.43 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: 22f94b06d401eec6170fac4eb7863f61f3d234111daf39fffd47d3264539f9d1
SHA-1: f56e3c6016e3486b94a21b5078a21a75a4a565f9
Required starting builds: 20G75, 20G81
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 XS Max iPhone11,6

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