This is Revervolv OS, bringing new life into Android devices. Here, all you have to do is search for your device, and pick the software you desire (Note: The most up to date software is recommended.) Please do the following things to install Revervolv OS:  1. Root your device. Don't know how? Go to www.google.com, and enter in the search "How to root (your device's name." Please do not enter "your device's name," that is just a spot where you would.  2. Find an app that gives you the ability to install a Custom Recovery (Additional procedures may be required, like unlocking your Bootloader)  3. Turn off your phone or tablet, and hold (Power + Volume up or down,) May vary on your device.  4. When you see recovery with a Android in the middle of your screen, go to "Install zip from SD Card," choose from Internal or External storage, and find the .zip file you downloaded. Then, your software will begin to install. Please Wait! You will need to delete everything first. Doing this will erase ALL pictures, videos, apps, etc. Except from your SD Card, if you have one inserted. Wipe data/factory reset > Yes.  After you complete these steps, you should have your software installed! Go to reboot device, or restart, or the button similar to that, and wait for Revervolv to start.