sn0wbreak developed by snowbreak team for jailbreak iOS 7.1 - 7.1.1 running iPhone 4 (GSM / CDMA). snowbreak is semi tethered jailbreak which works only on MAC OS X. You need MAC OSX 10.7 or higher to run snowbreak. sn0wbreak jailbreak is as same as geeksnow. but geeksn0w didn't has a MAC version and sn0wbreak came to fill that void. You can download snowbreak directly from our server.
sn0wbreak exploit iPhone4 using SSH_rd and use limera1n to gain root access for get permission into filesystem. snowbreak installs Cydia and semi tether files after that and boot the device using opensn0w.