Hi @Dameon777, let me see if I can help out here.
Could you possibly elaborate your question a bit? The latest update available for Xperia M4 Aqua is Android 6.0. If you have an older version of Android, you can try updating the phone either using the phone settings (Settings > About phone > Software update) or using Xperia Companion and a computer.
Let me know if that helped! If not, please do elaborate your question!
