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FIRMWARE DETAILS

iOS 17.3

Build: 21D50Jan 22, 2024Restore IPSW
Release CandidateStable

View details

Filename
iPhone15,4_17.3_21D50_Restore.ipsw
File size
7.95 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
af2ba8874f2dc89bf16ffad994367774bbb18c1820be8c5b4919b825a86f9772
SHA-1
0b22dfb44cdc696def526d15d97084e9be6a528b
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (1)

iPhone 15 iPhone15,4IPSW.me public API retrieval · Oct 22, 2026, 3:54 AM 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/iPhone15%2C4?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 989242f47d9cc55a85f3b5258a724b87

AppleDBhttps://api.appledb.dev/ios/iOS%3B21D50-RC.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 4b3232377333738272b60b561711624e

AppleDBhttps://api.appledb.dev/ios/iOS%3B21D50.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: b760c8e57a8ccf1aa32ec81eaf502938