This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 14 December 2020 | 
| Upload Date | 09 December 2020 | 
| File Name | iPad_Pro_HFR_14.3_18C66_Restore.ipsw | 
| File Size | 4.46 GB | 
| SHA256sum | 3605db8bb6d03e15fe8f4a93c842571bf22af426dac3c51d676e44d23f2e35b1 | 
| MD5sum | 49d8d0f65ce805f5742a1ef5c1c038a5 | 
| SHA1sum | 3f211da882df7968c36f15a69979e56c22bde100 | 
| Identifier | iPad7,2 | 
cd ~/Downloads.idevicerestore -e iPad_Pro_HFR_14.3_18C66_Restore.ipsw and press Enter.