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FIRMWARE DETAILS

iOS 17.1.2

Build: 21B101Nov 30, 2023Restore IPSW
Stable

View details

Filename
iPhone12,3,iPhone12,5_17.1.2_21B101_Restore.ipsw
File size
7.46 GB
File type
Restore IPSW
Download host
updates.cdn-apple.com
Link availability
Not verified

Source reports active

Last link check
Not checked
SHA-256
e7e685426f6c13e90618a3963779f950ee5c9d27e09b492ee8cc0efd97c6e1ad
SHA-1
8f067e971cabe9f1aeeb793c1756b7049660aeec
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (2)

iPhone 11 Pro iPhone12,3IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown
iPhone 11 Pro Max iPhone12,5IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
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

IPSW.mehttps://api.ipsw.me/v4/device/iPhone12%2C3?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: cfec6adc79f696f1bd1a447a0f9b8c12

IPSW.mehttps://api.ipsw.me/v4/device/iPhone12%2C5?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 494a92606df989608deb995f77517866