FIRMWARE DETAILS

iOS 17.4.1

Build: 21E236Mar 21, 2024Full OTA

Stable

View details

Filename: 62df0a96d80dc1910f7f6d7aae2874c5d6d0a850.zip
File size: 6.03 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: acc732aefe751b9e41d376b4c211f2651b7dfa7e235409439e8d1ae023a4ed52
SHA-1: 41b7492b7a8b91041961b326c3d056c81a5d2761
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 (3)

iPhone XS iPhone11,2

Unknown

iPhone XS Max iPhone11,6

Unknown

iPhone XS Max (China mainland) iPhone11,4

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%3B21E236.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 35d6f74f80d62b482e435ab6b7815260