firmwarehub.
العربية
FIRMWARE DETAILS

iOS 17.4.1

Build: 21E236Mar 21, 2024Delta OTA
Stable

View details

Filename
8ad4cb7be792e0cc35c3177f76e05f4ac6fa365b.zip
File size
5.21 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
a2b955afa8e516f1146ceb938a891036e27c77b0906e16b602a11801c24e33b3
SHA-1
f1fef21d6f8fb372c8b8396e568394b355a3c39d
Required starting builds
18G69, 18G82, 18H107, 18H17
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)

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