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FIRMWARE DETAILS

iOS 17.1 beta 3

Build: 21B5066aOct 10, 2023Full OTA
Beta

View details

Filename
d7affbdff851f74ae794a490ee42d4f4ee156ec0.zip
File size
5.86 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
3476952c2c77fa5f0d2935f6ab74362e6a1636d565fe79f14830385634188947
SHA-1
382ea09ae26cc49eb94204a0690e8b3523ddb63f
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 (2)

iPhone 11 Pro iPhone12,3
Unknown
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%3B21B5066a.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: b73e131c06b516a6126e8e74a8094a4c