This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 01 June 2020 | 
| Upload Date | 28 May 2020 | 
| File Name | iPad_64bit_TouchID_13.5.1_17F80_Restore.ipsw | 
| File Size | 3.43 GB | 
| SHA256sum | 8b183643f84e1a24089e5b751e76fb5f5a501e41c4dd7eee850125a48b6cc86f | 
| MD5sum | 6e16c7198b42c0ad4cdf9126e35da077 | 
| SHA1sum | 6ed04651d891295ac704cfb0fd86ccb91895b592 | 
| Identifier | iPad5,3 | 
cd ~/Downloads.idevicerestore -e iPad_64bit_TouchID_13.5.1_17F80_Restore.ipsw and press Enter.