How to Enable Unknown Sources in CAT S31 |HardReset.info

How to Enable Unknown Sources in CAT S31? How to allow unkown sources in CAT S31? How to install apps from diffrent soruces in CAT S31? By using Unkown Sourcers you may allow installation of apps from sources other than the Play Store. Check out how to easily find the Security Options and enable unknown sources. More Info: http://www.hardreset.info/devices/cat/cat-s31/hardreset/first-method/