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FIRMWARE DETAILS

iOS 17.1.2

Build: 21B101Nov 30, 2023Full OTA
Stable

View details

Filename
e8a110d935d35b8553f1e31be6438a2613d7c402.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
707ead0f49ab212e1d72e1ad54c06aed7d4711b48ed164f5f5bbae8da788f2d3
SHA-1
20a40ff1059217971c19ba5058505fdf09666c4c
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%3B21B101.json ↗

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