This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 13 December 2017 |
| Upload Date | 10 December 2017 |
| File Name | iPadPro_12.9_11.2.1_15C153_Restore.ipsw |
| File Size | 2.40 GB |
| SHA256sum | 9682ae919a6ea8513920ed4dc635c223cb18914200f72c5a3f32a3b43f23bb8a |
| MD5sum | aa33d07c5a711068bc112273c591967b |
| SHA1sum | e995052af967f4184ff07ec006c67bdb3324ebd4 |
| Identifier | iPad6,7 |
cd ~/Downloads.idevicerestore -e iPadPro_12.9_11.2.1_15C153_Restore.ipsw and press Enter.