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FIRMWARE DETAILS

iOS 14.3

Build: 18C66Dec 14, 2020Restore IPSW
Stable

View details

Filename
iPhone11,8,iPhone12,1_14.3_18C66_Restore.ipsw
File size
5.75 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
c691b8a5054b9b40c76c219d6a81e149f8a6375fda1e1269506215dc17b69158
SHA-1
b4ba7ccad716409e8151cae9743cfb78c59eb753
Required starting builds
Not reported
Board restrictions
Not reported

Compatible hardware (2)

iPhone 11 iPhone12,1IPSW.me v4 third-party restore observation (retrieval time) · Oct 19, 2026, 10:59 PM UTC
Unknown
iPhone XR iPhone11,8IPSW.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

IPSW.mehttps://api.ipsw.me/v4/device/iPhone11%2C8?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 10:59 PM UTC
Record fingerprint: 486ee74c2847822b27276b3f9f8ac377

IPSW.mehttps://api.ipsw.me/v4/device/iPhone12%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 82fb7ddf3217675ecd3c8486ce865eec