I have a "Swipe MTV Slate" Tablet with Android jellybin 4.2.2. By CPU-Z application I knew, It has Root access. It's "System Update" option always shows "The system is up to date". But I want to upgrade it's android version from 4.2.2 to 4.4.4(KItkat) as I want to get "Screen capture" facility. Can I do this ? If yes, then how to do this ? Please tell me step by step procedures as Iam a beginner in this field and I have no knowledge about technical terms of softwares. Thank you.