FIRMWARE DETAILS

iOS 17.4 beta 2

Build: 21E5195eFeb 6, 2024Delta OTA

Beta

View details

Filename: 51d889b481c1ec507a7d62cfc9e5a0db3bac7266.zip
File size: 1.25 GB
File type: Delta OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 3b916ca8693f3bed1bf704cebbc3f70e11ca7d7129223ac7224ff22af5008079
SHA-1: 4e474a83f6bc819fbc86bd0990ca85687fad86aa
Required starting builds: 21D5044a
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 SE (2nd generation) iPhone12,8

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%3B21E5195e.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 21fe910594df6aaab59daecf0d092d98