recently my tv remote broke and my tv has never been connected to WIFI before because i only use it for my Xbox, but the volume is stuck at 50 and without a remote i cant turn it down any help would be appreciated
Sorry, it can't be done. You can probably pick up a cheap universal remote that supports Roku TVs.
My old TCL Roku TV actually had volume buttons on the back, but the one button on my newer TCL doesn't seem to be able to control the volume.