This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 10 February 2022 |
| Upload Date | 07 February 2022 |
| File Name | iPad_Spring_2019_15.3.1_19D52_Restore.ipsw |
| File Size | 5.55 GB |
| SHA256sum | ac9178634c9d7fde9d009e7f08a73e4821f1cabd2cd8e1f7662093a3c266a1d1 |
| MD5sum | 8c2ecb1a8c04c89f9dcb858fc9e3da8e |
| SHA1sum | ace4f5610a37e7b6cad88c4a238faa02cc5b7d8d |
| Identifier | iPad11,2 |
cd ~/Downloads.idevicerestore -e iPad_Spring_2019_15.3.1_19D52_Restore.ipsw and press Enter.