Product review (5 stars): Installs In One Connect Box.  Not in TV
My 55 inch UHD Samsung has a message on the screen that there was a problem with the cooling fan and the tv would turn off.  I looked up the part online and found out it installs in the small One Connect box and not in the TV.  Very easy to install.  I have no idea what the other reviewer is talking about with taking the back off the TV.