FIRMWARE DETAILS

iOS 17.4.1

Build: 21E236Mar 21, 2024Restore IPSW

Stable

View details

Filename: iPhone15,4_17.4.1_21E236_Restore.ipsw
File size: 8.03 GB
File type: Restore IPSW
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 17224aed4008a4d4b0467f16861ac3db9ab1b94d10c408960b5f5501511d5efd
SHA-1: 232a1278ec1098fdd0a3820bfd77372338d08a18
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 15 iPhone15,4IPSW.me public API retrieval · Oct 22, 2026, 5:35 AM UTC

Unsigned

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

IPSW.mehttps://api.ipsw.me/v4/device/iPhone15%2C4?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 80a9d04cdb0dcf389bea67966b0f74d9