IPSW Portal

Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 11.4 (15L5536c) for Apple TV 4 (2015)

Version:	11.4
Build:	15L5536c
Signed:	No
Size:	1.18 GB
Release Date:	2018-04-03 17:09:48
Upload Date:	2018-03-29 19:29:44

Secure download directly from Apple's servers