This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 20 May 2020 | 
| Upload Date | 14 May 2020 | 
| File Name | iPad_Pro_HFR_13.5_17F75_Restore.ipsw | 
| File Size | 3.71 GB | 
| SHA256sum | 22ba68485b2d567f263e2372d155becbf8b50562c466426eee5d312e871c8552 | 
| MD5sum | 0f6720930a6c29cb62b350f9c9d8633f | 
| SHA1sum | a6426633b6e66d2521db82252dac1b0f2ed89b67 | 
| Identifier | iPad7,2 | 
cd ~/Downloads.idevicerestore -e iPad_Pro_HFR_13.5_17F75_Restore.ipsw and press Enter.