FIRMWARE DETAILS

iOS 17.1 beta

Build: 21B5045hSep 27, 2023Full OTA

Beta

View details

Filename: 4736a2b58d9e4b38034dc0e3dda67004e2338bcf.zip
File size: 6.30 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: 5e113d3a6d658022995d638979dbd210600663f03532b45c04976385d397a9c9
SHA-1: 12bce3c5f31cf739abdd0408363b44f10577214b
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%3B21B5045h.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 460f657eb931788bddaa2b5ef7d2a9b1