Hi, I’m new in this forum and I’m a very beginner. I have a Tp-link C5 max (702C) [rooted] and I want to upgrade from Android 5.1 to 7.1.2. but there’s no official upgrade (and may be never) or customs ROMs for the device. I think that it is possible but I don’t know how.
After a little research I concluded that I need “port” a ROM or “customize” my own ROM. Is that correct? If it’s, could you help me telling me exactly what to change and how? If not, any idea to do that?