Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 11.2.1 (15C153) for iPad mini 4 (Cellular)

Version:	11.2.1
Build:	15C153
Signed:	No
Size:	2.44 GB
Release Date:	2017-12-13 18:04:14
Upload Date:	2017-12-10 22:55:56
SHA1:	5a673cb851a7c6b94c3a16cde0f780bbfed5f11f
MD5:	2f5a8e21aa41456111aea8555536482e
SHA256:	d22407b8ca84c30bc8ae54c6e00e3b85991bdb8ed96a3cc968081f9feeb6dc99

Secure download directly from Apple's servers

IPSW Portal