This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 09 December 2014 |
Upload Date | 05 December 2014 |
File Name | iPhone4,1_8.1.2_12B440_Restore.ipsw |
File Size | 1.45 GB |
SHA256sum | b482f5749adf59d118ad5449d10db22e261a78d6f9d9f3677550a9371cff0ced |
MD5sum | 39341750faab88b272fdfb7ac0316597 |
SHA1sum | 53fa0cf99b772736630555b00d6d0f92494a09d9 |
Identifier | iPhone4,1 |
cd ~/Downloads
.idevicerestore -e iPhone4,1_8.1.2_12B440_Restore.ipsw
and press Enter.