This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 22 January 2019 |
| Upload Date | 11 January 2019 |
| File Name | iPad_64bit_12.1.3_16D39_Restore.ipsw |
| File Size | 2.69 GB |
| SHA256sum | |
| MD5sum | 9086edce260e82f615eb9f3fe56483a0 |
| SHA1sum | 6dc3ee86cc851735ade16794a0497614f25262e3 |
| Identifier | iPad4,2 |
cd ~/Downloads.idevicerestore -e iPad_64bit_12.1.3_16D39_Restore.ipsw and press Enter.