A team of researchers from the US and Europe have invented new way to How to root rights on Android devices that use the vulnerability Rowhammer. To say more simple terms, there is a tapping cell memory and data manipulation takes place in them. The method works on the lion’s share of devices and has been tested even on ARM chips.
The chances of getting root access equal to 90% +.
As you can see, Rowhammer method does not carry the execution difficulties.