FIRMWARE DETAILS

iOS 17.2 beta 4

Build: 21C5054bNov 28, 2023Delta OTA

Beta

View details

Filename: 1bbb9f8731e0c5d408507d03a4e490fb27551114.zip
File size: 551.6 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: 293c1072c4503e56f9559b6ec802ed8a68e7a449bf51e4cb35fc00fb5e45b5f5
SHA-1: 5433fc73b191022d67a0c13a0e2af40819e4278b
Required starting builds: 21C5046c
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 12 mini iPhone13,1

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