Alright...just adding my last comment that may help someone in the future :-)
-The TV (UN55H7150) ships with two remotes (the smart remote and the regular one).
-Use the regular remote.
-Power of the TV with the remote.
-Press: mute, 1, 8, 2 and power button in a sequence quickly.
-This should bring up the service menu
Note: Be very careful when making changes. I realized there is NO save option. I believe all the changes are AUTO SAVED!!!!
-Once you are inside the service menu use the arrow keys and the return, enter buttons to navigate and make the changes.
-When done, simply power off the TV and restart.
Note: As the other poster mentioned, I lost all my picture settings and had to reconfigure them.
But finally, I was able to pair my headphones and get it working!!!
Thank you so much everyone for the help :-)