This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 26 January 2022 | 
| Upload Date | 23 January 2022 | 
| File Name | iPad_Pro_A12X_A12Z_15.3_19D50_Restore.ipsw | 
| File Size | 6.13 GB | 
| SHA256sum | 0b33fecc890b1663d17763ac02244bc974abec18c162828ff74f6b84bed5afd4 | 
| MD5sum | b644a1a36379eafefb3dd77353c1069a | 
| SHA1sum | 404e0b1633a699bd342e6a2ff7b1a641dc86b1b7 | 
| Identifier | iPad8,5 | 
cd ~/Downloads.idevicerestore -e iPad_Pro_A12X_A12Z_15.3_19D50_Restore.ipsw and press Enter.