android training center in noida sector 15 The Android recent replace is nougat 7.Zero, the modern replace of OS in the marketplace is marshmallow. We can replace to custom ROM also from the stock room. Stock room in the feel it's far business enterprise copyrighted OS, whereas the custom ROM is manufactured with the aid of both cyanogenmod (custom ROM), which turned into synthetic with the aid of special companies for the welfare of smart phones. Then this tradition ROM have become famous and brought in a few cell handsets. This custom ROM can be mounted the usage of three way of steps.