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FIRMWARE DETAILS

iOS 17.7

Build: 21H16Sep 16, 2024Restore IPSW
Release CandidateStable

View details

Filename
iPhone15,4_17.7_21H16_Restore.ipsw
File size
8.09 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
9fbba9b890041aba06a2693ecdee5e785022eec5d295d0847bf403d409d6e7e9
SHA-1
0cc274aeebb1ab47abe410ae491f05f7c8b35450
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (1)

iPhone 15 iPhone15,4IPSW.me public API retrieval · Oct 23, 2026, 8:23 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%3B21H16-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: c8b3b02ce4311c79f2853199085cf330

AppleDBhttps://api.appledb.dev/ios/iOS%3B21H16.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:27 PM UTC
Record fingerprint: ae79657c71a1de572003507c6b1f785c

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: 592471ed28cf020a644806d0f3006509