Signed boot for iPhone and iPad with support from the jailbreak community.
This signed boot library requires ideviceactivate library.
idevicerestore [-d] [-u] [-c] [-v] [-h] <input.ipsw>
-v, enable incremental levels of verboseness
-d, enable communication debugging
-u, target specific device by its 40-digit device UUID
-h, prints usage information -c, restore with a custom firmware
Thanks for going thorugh all of this.
If you would like to contribute, simply fork, make something cool, pull request, and if we deem it as good enough, we will accept it.