im ere

No it’s sometimes shows on screen but can’t turn it up or down

Hey I wonder if any could help, I have 2 problems with the tv, an not sure what I can do to fix the problems 1. Volume - the volume button won’t work iv changed the batteries, tried to mess around with settings still nothing, all the other buttons work tho? 2. when I try to put the fire stick in the hdmi, the fire stick, does not stay on, but the fire stick work on other TVs, but iv put it in all the hdmi ports n still does same,