Thanks guys for the suggestions. I'm new to android in general, so I wasn't sure how "niche" a tv box would be
I'd be happy to ask on the xda forum, but it didn't strike me as useful, there is already one thread about it without an answer
I'm sure someone here will see this and can suggest some useful info. I didn't expect an immediate answer/solution. I'm grateful for the responses and help I already received, especially the mods. If I find a solution on my end, I'll post it.
In the meantime, message in a bottle