This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | Invalid Date |
| Upload Date | 02 May 2011 |
| File Name | iPod4,1_4.3.3_8J2_Restore.ipsw |
| File Size | 0.64 GB |
| SHA256sum | 16eb231917f698ca5692541dc7208d47afcdbb7935f5551bfd1a2bc43e300288 |
| MD5sum | dd5003cc00dbaa9fbf0182c5a2e5d6ed |
| SHA1sum | 1b208377ee0e74d8c20c56e943eeef5ddea5f5ee |
| Identifier | iPod4,1 |
cd ~/Downloads.idevicerestore -e iPod4,1_4.3.3_8J2_Restore.ipsw and press Enter.