Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 12.1.2 (16C101) for iPhone 7 Plus (Global)

Version:	12.1.2
Build:	16C101
Signed:	No
Size:	3.25 GB
Release Date:	2018-12-17 21:09:38
Upload Date:	2018-12-13 19:29:30
SHA1:	a2932581abb39b36739245f0ddb6c2548cd0e14e
MD5:	be0b74567c8dd0220ede14baaf85ee4e
SHA256:	0444ed15d97e88ce7a24fcbbb1928c30aef2f0d75ce5bd44a4084151ba059c04

Secure download directly from Apple's servers

IPSW Portal