GoPro hero 10 black

Bought Mabe 1 month ago from a diff seller for 120$ saying only needed battery finally going to use it and it over heats and can’t connect to quick app all bad if somebody know how to fix or needs parts selling it for 57$ I was going to try to update firmware but not good with computers and can’t update from camera easier because can’t connect to the app so selling for parts comes with no battery it works but gets hot real fast and can’t connect to app cause all I need was to hook up trailers at work but I need the live view and won’t be able to connect to app so no use for me {did the update and still can’t connect to the quick app so it’s something internally }