This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 21 October 2015 | 
| Upload Date | 16 October 2015 | 
| File Name | iPad5,4_9.1_13B143_Restore.ipsw | 
| File Size | 1.86 GB | 
| SHA256sum | 813bb14bfdec55c53e20100793bfee9e1c097af59160c400389df50d67aad045 | 
| MD5sum | 5294de9d0f60b809cba0f12ed9113891 | 
| SHA1sum | e5874fa98e73ba4fa54b4f1fc757785c8652ad10 | 
| Identifier | iPad5,4 | 
cd ~/Downloads.idevicerestore -e iPad5,4_9.1_13B143_Restore.ipsw and press Enter.