IPSW Portal

Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 9.9.12.1 (16B5059d) for iPhone X (GSM)

Version:	9.9.12.1
Build:	16B5059d
Signed:	No
Size:	2.57 GB
Release Date:	2018-09-18 17:20:18
Upload Date:	2018-09-14 17:10:59
Release Type:	Beta

Secure download directly from Apple's servers