FIRMWARE DETAILS

iOS 17.4

Build: 21E219Mar 5, 2024Restore IPSW

Stable

View details

Filename: iPhone16,1_17.4_21E219_Restore.ipsw
File size: 8.22 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: b7520d2e01ff28c1bc7ef8f203e31c7e3e474f5d78ef9f15439a31f15298e10b
SHA-1: 57e70c1bd88b933af2c964ff321a7a2def0cc942
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 15 Pro iPhone16,1IPSW.me public API retrieval · Oct 22, 2026, 3:57 PM UTC

Unsigned

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

IPSW.mehttps://api.ipsw.me/v4/device/iPhone16%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 7c452f7e41067f2deffd5ab634be15af

AppleDBhttps://api.appledb.dev/ios/iOS%3B21E219.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: c89b542f4c3e0674573e93f3ad0939c2