This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 03 October 2017 | 
| Upload Date | 28 September 2017 | 
| File Name | iPad_Pro_HFR_11.0.2_15A421_Restore.ipsw | 
| File Size | 2.53 GB | 
| SHA256sum | 49002e1ef064c7a5f00e01bbd60afffd5e5335e6f7dd4faa2be33674976225c2 | 
| MD5sum | 9fc429590c45f83354e900f6ba949d94 | 
| SHA1sum | 388825f74195d0b9c6ce589e401bad9d0200564a | 
| Identifier | iPad7,2 | 
cd ~/Downloads.idevicerestore -e iPad_Pro_HFR_11.0.2_15A421_Restore.ipsw and press Enter.