Follow these steps.
Before you proceed with the following steps, be sure to download all the necessary files from the applications store of this website.
Don't forget to watch this video tutorial Here if you ever got stuck in the middle.
a. Power on your device
b. Select Start
c. Connect to a WiFi network
b. Click this link on another working device that is connected to the Internet and follow the remaining steps.
Hope that was helpful. Thanks.