How to Upgrade Android 4.0 Ice-cream Sandwich

Android is a mobile operating system (OS) designed especially for touchscreen mobile devices, based on Linux kernel by Google. Android has been the best-selling OS on tablets and on smartphones since 2013. Android’s first app store is Google Play, with over thousands of beautiful and useful android applications (apps) 100% fully published and downloadable only for … Read moreHow to Upgrade Android 4.0 Ice-cream Sandwich