So, you want to customize your Always On Display on the Galaxy S7 Edge? Well, you can do it easily with the GalaxyXMod APK, which is an Xposed Module that allows you to easily put your own custom backgrounds.
Now, this has only been tested to work on the Galaxy S7 Edge, it may work on the Galaxy Note 7 but we should have an update on that soon.
To install this, you will need a rooted Galaxy S7 Edge along with Xposed Installer installed. For full demo and installation, see How to Customize Always-On-Display on Galaxy S7 or S7 Edge!
If you have a rooted S7 Edge, definitely try it out and do let us know how well it worked for you.
Credits – Xposed
What is an APK File?
APK File is a file/app that can be installed on any Android smartphone or tablet. Using an APK file, you can install Android apps manually on your Android device.
You do not need a rooted Android device to install APK files. For installation instructions, please see below.
How to Install APK Files
You will need to make sure Unknown Sources is checked ON in Settings to install APK files. We do recommend you to use a file explorer app such as ES File Explorer, available on the Play Store for free, to install these apps.