This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | Invalid Date |
| Upload Date | 07 March 2011 |
| File Name | AppleTV2,1_4.3_8F191m_Restore.ipsw |
| File Size | 0.31 GB |
| SHA256sum | 20a109db5b253380301cf0e3a41dcb1bc89f34bb68e9d9cac4d4e42d09564d2d |
| MD5sum | 85647af7e281cfca4f4e0d1c412f668f |
| SHA1sum | 71bf070e755753e6dd29e2fc13cff9e248b58bd0 |
| Identifier | AppleTV2,1 |
cd ~/Downloads.idevicerestore -e AppleTV2,1_4.3_8F191m_Restore.ipsw and press Enter.