I had the same problem. I’ve sold the 5’er, but the TV Mount had a locking mechanism. I’m thinking there was a bar near the bottom that pulled out which allowed the TV to be lifted off the mount. Sorry I can’t be of more help!Getting ready for a trip. I need access to the rear of the TV and so far haven't figured out how it's supposed to come free from the mounting. (I want to get to the HDMI port).
Looking for advice before I break something.