FIRMWARE DETAILS

iOS 17.3 beta

Build: 21D5026fDec 12, 2023Delta OTA

Beta

View details

Filename: 46de382b1ea9a1adc8de277084286e899ad63611.zip
File size: 632.8 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: b37a6a1be3211e881cb99a8397964ad3e9dbb07f225080f18ebb8c718348f2f6
SHA-1: 807d3bb3f3ee0a5d842238fa1b01f478909566fa
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 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%3B21D5026f.json ↗

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