Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 8.4.3 (12H903) for Apple TV 3 (2013)

Version:	8.4.3
Build:	12H903
Signed:	No
Size:	0.86 GB
Release Date:	2020-09-16 19:40:41
Upload Date:	2020-09-09 23:11:58
SHA1:	933729760253b2c7a414b704c1c9de7f6fa72244
MD5:	a9c2bc9f62b75dc7dca3a0f95d783dc9
SHA256:	d2e863ed2e23d68f4ba4138d562ea6efc4c197959700088fa83c1b0b3cd437da

Secure download directly from Apple's servers

IPSW Portal