Bang & Olufsen Beovision LX-5500

I’ve had this tv for a few years and it was working apart from the power button being a bit fiddly when turning on and off, had to press more on one side. It’s not been turned on for a while and now it’ll go into standby but power button feels like there’s nothing there, just sort of squishy, any one able to give me a clue on what could be going on, also won’t come out of standby with remote. Cheers ✌🏻