How can i fix this?

https://reddit.com/link/1nw42b4/video/1kt6k34fbpsf1/player

How can i fix this? I bought it yesterday, have this problem, changed it to a new unit today, came home and try it, still the same problem. There's no return policy from where i bought it so i'm stuck with this, should i just request unit change again? but if there's still problem with 2 i don't think a new one will solve anything. the green charging light keep flashing, and the battery won't go up

akso i can't connect to PC, it keeps connect and disconnect back and forth. crash the g hub app a few times too.