UMI Touch UNKOWN SOURCES / Enable App Installation

How to Enable Unknown Sources in UMI Touch? How to allow unkown sources in UMI Touch? How to install apps from diffrent soruces in UMI Touch? By using Unkown Sourcers you may allow installation of apps from sources other than the Play Store. More Info: http://www.hardreset.info/devices/umi/umi-touch/