This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 12 August 2020 | 
| Upload Date | 07 August 2020 | 
| File Name | iPad_Fall_2018_13.6.1_17G80_Restore.ipsw | 
| File Size | 4.18 GB | 
| SHA256sum | 132bc34d18ad95ffd1eaa15619781ca7cd7531b58a77d4e7909bbac268e17a1f | 
| MD5sum | 4fd10c4c86a20081b9f0664ebb0101d1 | 
| SHA1sum | e538900527b65c8f64883a534006f32ead6b700a | 
| Identifier | iPad8,3 | 
cd ~/Downloads.idevicerestore -e iPad_Fall_2018_13.6.1_17G80_Restore.ipsw and press Enter.