FIRMWARE DETAILS

iOS 15.1

Build: 19B74Oct 25, 2021Restore IPSW

Stable

View details

Filename: iPhone14,4_15.1_19B74_Restore.ipsw
File size: 6.61 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: 52332490670385345ab1eb5f42044a5fc434415aef1d43ba11c1c88da59df1d1
SHA-1: 8c0ba143558722d09defe8a24418e659dc2539c3
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 13 mini iPhone14,4IPSW.me public API retrieval · Oct 21, 2026, 11:06 AM 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/iPhone14%2C4?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 1904b37abf1b7fea7802aba0b4b05191