This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 26 March 2021 | 
| Upload Date | 23 March 2021 | 
| File Name | iPad_Pro_A12X_A12Z_14.4.2_18D70_Restore.ipsw | 
| File Size | 5.25 GB | 
| SHA256sum | 998ef00cecef25098c7404b9f162425e9746db0e0da9f7e54746de6ae09c6977 | 
| MD5sum | 6a45bb1c5b48edd981448226f20ebd41 | 
| SHA1sum | 964f1d0fdb21c4fb477b4e6df15ec182690a46e3 | 
| Identifier | iPad8,3 | 
cd ~/Downloads.idevicerestore -e iPad_Pro_A12X_A12Z_14.4.2_18D70_Restore.ipsw and press Enter.