Send help!

Hi, alright. I did not make my Kodi, my aunt did, but she’s no longer willing to assist me. I plug in the AC cord to the wall and to the device itself. I plug in the HDMI cord. It’s even got an SD card and an Ethernet cable. Every time I go to use it, it brings up the screen letting me know that it runs on OpenElec and then everything goes black and nothing happens. I’d love to be able to use it, but no luck whatsoever. Thanks!