FIRMWARE DETAILS

iOS 17.1.2

Build: 21B101Nov 30, 2023Full OTA

Stable

View details

Filename: 570f685f442946839d658ed8949436a46ed6d275.zip
File size: 6.23 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: e5c900a32325220a17cb5d59689597504334e14b1f5cd5f8b0addcd4e871f983
SHA-1: 3f4eeee3fa9c92f6476d4d6f74278dfb3e4f25c9
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 12 iPhone13,2

Unknown

iPhone 12 Pro iPhone13,3

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