For those of you who want to turn your Galaxy S4/S5/S6/S7/S7 Edge, Note 3/4/5 into a full-fledged Galaxy S7 Edge Batman Injustice Edition, now you can with the official Injustice Edition Samsung theme and any custom ROM that supports Samsung’s new theme UI.
Step 1. Install an S7 Edge ported ROM for your Galaxy S4, S5, S6, S7, Note 3, Note 4, or Note 5. If you have S7 Edge, you can use stock ROM or custom ROM.
First of all, you will want to be running a ported Galaxy S7 Edge ROM on your Galaxy smartphone, here’s our recommendation: