FIRMWARE DETAILS

iOS 17.3 beta 3

Build: 21D5044aJan 9, 2024Delta OTA

Beta

View details

Filename: cd0ac248bf99a82cd89d10c6503a1db9e0f677fa.zip
File size: 678.2 MB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: be07330f281cb6010dc1c2efc145cd7624a9a6c05e811805e63f6ff4395fb8bd
SHA-1: aef92aa4183501f503936904fb5ff8c9fc482483
Required starting builds: 21C5054b
Board restrictions: Not reported

OTA packages can require an exact starting build and board. A matching hardware identifier alone is not sufficient for installation.

Compatible hardware (1)

iPhone 15 iPhone15,4

Unknown

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%3B21D5044a.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 64f287e6963a6e99dabd1ecff07b4785