Make sure that your Eyelights device is plugged to the 12V cigarette lighter and that your car's engine is on.
Launch the application and connect it to your Eyelights device using Bluetooth.
Accept the Security mode. As long as you did not agree with it, the tablet's display will not turn on.
Warning : If you are using a Huawei phone, make sure that you plug your USB cable to your phone just after enabling USB debugging mode. If you come back on the previous menu, it will automatically disable the USB debugging.