This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 27 January 2015 |
| Upload Date | 19 January 2015 |
| File Name | iPad2,1_8.1.3_12B466_Restore.ipsw |
| File Size | 1.31 GB |
| SHA256sum | c73c7543a77fcd376dc3f57ea35ca5091b0883157bf39b4409db87dd1c872a1b |
| MD5sum | 067759efd58e3a846d428324063204e4 |
| SHA1sum | a0ae2368aded15793244b10286b50166328c06ea |
| Identifier | iPad2,1 |
cd ~/Downloads.idevicerestore -e iPad2,1_8.1.3_12B466_Restore.ipsw and press Enter.