This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 26 January 2021 | 
| Upload Date | 17 January 2021 | 
| File Name | iPad_Pro_A12X_A12Z_14.4_18D52_Restore.ipsw | 
| File Size | 5.28 GB | 
| SHA256sum | d05c4ffd02a3e4628043b99ef916a71bc6ec9d025442006c2c445a105fbd48c1 | 
| MD5sum | 65a1c008b9e7ee05aad269e1bedeea0c | 
| SHA1sum | e97c478384d9ce08a3c6e9aece57ccc1142dd364 | 
| Identifier | iPad8,5 | 
cd ~/Downloads.idevicerestore -e iPad_Pro_A12X_A12Z_14.4_18D52_Restore.ipsw and press Enter.