This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 19 January 2016 |
Upload Date | 12 January 2016 |
File Name | iPhone6,1_9.2.1_13D15_Restore.ipsw |
File Size | 1.81 GB |
SHA256sum | bf82995870bb8cb72b362f8a100460e8333afeab5f60a72a7f4afea01ae8ee69 |
MD5sum | 9a71347e9d6dddb2874158b2202968b1 |
SHA1sum | ecf03303ed8d9312cbf0e226ca407c1e643f30b2 |
Identifier | iPhone6,1 |
cd ~/Downloads
.idevicerestore -e iPhone6,1_9.2.1_13D15_Restore.ipsw
and press Enter.