firmwarehub.
العربية
FIRMWARE DETAILS

iOS 17.1.2

Build: 21B101Nov 30, 2023Delta OTA
Stable

View details

Filename
31a2705968c8ae656ed97de6f0fef53fd0bc2005.zip
File size
3.55 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
ec5f0a1713f17fe447532888f702a5b19c74d0ec5b47c536d242be0a5dbc8eac
SHA-1
8a88d60b8a0d36507a928559395dbfb0df59b846
Required starting builds
20G75, 20G81, 20H19, 20H30
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%3B21B101.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 6:28 PM UTC
Record fingerprint: 4f30a5cce34598c7be862eafa91e271b