I just tried hooking it up I got it to connect to the Internet and update but now all it will do is have the black and purple screen and watch them while Roku will pop up and go through a loading screen type thing and that’s all it will do
What's the model number? Are you using the supplied power adapter? Try performing a factory reset and starting over.
https://support.roku.com/article/208757008-How-to-factory-reset-before-returning-selling-or-gifting