IPSW Portal

Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 12.3 (16F5129d) for iPad Pro 3 (12.9-inch, Cellular, 1TB Model)

Version:	12.3
Build:	16F5129d
Signed:	No
Size:	0.32 GB
Release Date:	2019-04-08 17:04:53
Upload Date:	2019-04-04 18:08:04
Release Type:	Beta

Secure download directly from Apple's servers