This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 09 December 2014 | 
| Upload Date | 05 December 2014 | 
| File Name | iPad5,3_8.1.2_12B440_Restore.ipsw | 
| File Size | 1.90 GB | 
| SHA256sum | 276d55119eecac98389d43b3e41abe5e5419a43cd2b3b1299a445fb2bfcfa030 | 
| MD5sum | e82966d7b690db8a9cdd7c5250904483 | 
| SHA1sum | a717e231e49f181fa40383a23d4f8fe3c04277e0 | 
| Identifier | iPad5,3 | 
cd ~/Downloads.idevicerestore -e iPad5,3_8.1.2_12B440_Restore.ipsw and press Enter.