FIRMWARE DETAILS

iOS 15.1

Build: 19B74Oct 25, 2021Restore IPSW

Stable

View details

Filename: iPhone13,1_15.1_19B74_Restore.ipsw
File size: 6.58 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: 7d319fe270b5eae170ff3bae6a5ef5668fb221d9cf3cdf928419f6c2cb1d0551
SHA-1: 33a62bee24306309a2828d8c073a1d3679576e8e
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 12 mini iPhone13,1IPSW.me public API retrieval · Oct 22, 2026, 2:55 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/iPhone13%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 2561961e8d82d2094983d92ce2e27ec9