Please help! I have a ONN roku tv and need to know if or how to get into usb debugging mode or developer mode..thank you.
I think you're assuming there is a USB debugging mode. I've never heard of such a thing on a Roku TV, so it would have to be onn specific. As for Roku developer mode...
https://developer.roku.com/docs/developer-program/getting-started/developer-setup.md
I think you'll find it's useless for whatever you're trying to do.
Thank you for the advice but what I was told was that I needed to enable these features to get my amazon firestick to work on my onn roku tv. Is that not correct??
That's definitely not correct. It's no different than connecting a Blu-ray player or anything else that connects to an HDMI port. This isn't a developer issue, so you may want to post in the Roku TV section , although I'm not sure it's even a Roku issue. You should be able to just plug it in and select the proper input on your TV.