FIRMWARE DETAILS

iOS 15.1

Build: 19B74Oct 25, 2021Restore IPSW

Stable

View details

Filename: iPhone12,8_15.1_19B74_Restore.ipsw
File size: 6.19 GB
File type: Restore IPSW
Download host: updates.cdn-apple.com
Link availability: Not verified
Source did not report availability
Last link check: Not checked
SHA-256: 14396c9e5ff6f95264645270676211ae1e9f1a615b6a81e3fd55ea3e7e8c80e7
SHA-1: 4ede7888eb26c40f6b73994399bef3be35af3b38
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone SE (2nd generation) iPhone12,8IPSW.me public API retrieval · Oct 22, 2026, 3:27 PM UTC

Unsigned

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

IPSW.mehttps://api.ipsw.me/v4/device/iPhone12%2C8?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 5a034aa20d5046b34afa6c43fc4afb4a