kindle 4 non touch jailbreak + SSH + ScrenSaver installation guide links
#packages jailbreak payload https://www.mobileread.com/forums/showthread.php?t=225030
#packages ss+usb https://www.mobileread.com/forums/showthread.php?t=88004
#ssh https://gist.github.com/estysdesu/c90478aac75b732820be6720254aeda7