There is lot of custom ROM for Samsung Galaxy S III. Which one should I choose? Well, try all of them if you can. Find out the best one for you. Omega ROM for Samsung Galaxy S3 is the latest custom ROM that I tried. Omega ROM is based on official Samsung Galaxy S3 firmware and it is deodexed, rooted and zipaligned. Furthermore, Omega ROM is loaded with Aroma installer which ROM installation is fully customizable by user and there are options to install everything and remove bloatware. And Omega Files (kitchen alike app) can help to download new apps, mod, kernel… Then install them with CWM manually.