FIRMWARE DETAILS

iOS 17.4.1

Build: 21E236Mar 21, 2024Restore IPSW

Stable

View details

Filename: iPhone15,3_17.4.1_21E236_Restore.ipsw
File size: 7.96 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: 99a9fd4daa19e90bfb80a5cc68674f9324373623c46a66e33736a7de92a3a615
SHA-1: 81474c62bf407507ebe40a7c29b6bc241511ce32
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 14 Pro Max iPhone15,3IPSW.me public API retrieval · Oct 23, 2026, 2:36 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%2C3?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 631677afa0059bb1973e46e7093e6457