FIRMWARE DETAILS

iOS 17.3 beta

Build: 21D5026fDec 12, 2023Delta OTA

Beta

View details

Filename: bb56fc523cc63f587d5b1fefb0264ac2638d1882.zip
File size: 661.3 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: 2f977950e012ce1d981b88965f4f04776aaef5fcc33a01efb6e5c460ff91f539
SHA-1: f600dc00cfc59cdaade7cda5fdfc965451c7569f
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 14 Pro iPhone15,2

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%3B21D5026f.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 02068c392e032fb64a160afd4cdf5874