FIRMWARE DETAILS

iOS 17.2 beta 4

Build: 21C5054bNov 28, 2023Full OTA

Beta

View details

Filename: 1c657e27e13b37670640dab2684d94653def82c8.zip
File size: 6.23 GB
File type: Full OTA
Download host: updates.cdn-apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 61e6dbc0c1456df5671b50f3dc64586f5c0a60a3fa722ef325b69e2aab43cb75
SHA-1: 9fa78d49cdf6e749aa51472554d4388fff9ff515
Required starting builds: Not reported
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%3B21C5054b.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 8a5d0e9f998e015dade556b1b5efefaf