As such it is one of the simplest possible models of computation. Nevertheless, there is an elementary cellular automaton (rule 110, defined below) which is capable of universal computation.
In 2012, there were some 3,997 distinct Android devices. This year there are a whopping 11,868. Eight versions of Android are currently in use and 37.9 percent of users are running Jelly Bean, the latest version of the mobile OS. Samsung's apparent share of the market is 47.5 percent.
Thus, if the guide, ROM, or root method used is for a device variant with a different hardware setup, there is a risk of bricking the device. In recent years, there is a new method of rooting Android devices called systemless root. Systemless root uses various techniques to gain root access without modifying the system partition of a device.