Android Nougat came with a lot of new features, including a futuristic and sleek circle animation. When this article was originally published, it was rumored that the circular design would be used as the new boot animation in Android 7.0—but as it turns out, you'll only see this screen while you're installing a firmware upgrade or working with ADB.
That was a little disappointing, because it's definitely a cool-looking animation—so XDA user mattwheat went ahead and converted it into a boot animation so that you can see it every time your phone starts up. This bootanimation.zip file can replace the existing startup screen on most current devices, regardless of Android version, so I'll show you how to try it out below.
To get started, download the bootanimation.zip file from Android Nougat.
Next up, use your favorite root-enabled file browser to navigate to the /system/media folder on your device. From here, locate the existing bootanimation.zip file, then long-press it and choose "Rename" (note that if your device does not have a bootanimation.zip file in this folder, it is not supported). Next, simply add a ".bak" to the end of the file name, then press "OK."
From here, head to the Download folder on your SD card or internal storage partition, then select the bootanimation.zip file that you downloaded in Step 1. From here, just copy the file, then paste it into the /system/media folder.
Once you've done that, long-press the newly-copied bootanimation.zip file, then choose "Permissions." Finally, set the Owner category to "Read" and "Write," then make sure all other categories are set to just "Read."
At this point, all that's left to do is to reboot your phone and check out the new boot animation. It's a white circle that features colored ribbons morphing around alongside it, and the animation itself is something akin to a loading circle.