The bootanimations can be downloaded from the Download section below and you will need a custom recovery, such as TWRP, to be able to flash them. Yes, they’re all flashable zip files. But if you don’t have a custom recovery on your device, you can still install the bootanimation. It wouldn’t be a bad idea to first back up your device’s original bootanimation first before you go ahead and replace it. To do so, using a file explorer of your choice navigate to the /system/media folder. Here’s you’ll find a file named bootanimation.zip. Rename the file to bootnimation.zip.bak or just copy it somewhere safe.