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FIRMWARE DETAILS

iOS 17.1

Build: 21B80Oct 25, 2023Delta OTA
Stable

View details

Filename
32954257ac46d388adbde4e7ba1a2aa08ab11831.zip
File size
1.50 GB
File type
Delta OTA
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
f1573e1f1f59fe71f3c3ff2b3af358963ef5963406e1790ce9a63fb2d5ce78c7
SHA-1
e18338a3260a3ee6845cd7ea6a9cf2741ae70d26
Required starting builds
21A326, 21A327, 21A329, 21A360
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)

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%3B21B80.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 0c4ce2fa2e67994f9d70a827901c0dd4