Did the unit shut off during an update? Have you already tried doing a factory reset on the television?
http://support-us.samsung.com/cyber/popup/iframe/pop_troubleshooting_fr.jsp?idx=590880&modelname=UN65JU7100F&modelcode=UN65JU7100FXZA
If the reset don't help I would recommend contacting our Remote Managment team here at 1-800-726-7864.
Regards,
HD Tech
Bought a new Samsung 7100 yesterday and it worked great, including my PS4 which you have to connect through the One Connect Mini. Today when II turned on the TV it said thatthe TV was updating but then about 30 seconds later a warning appeared stating that the One Connect Mini was disconnected and then shut down. Then the TV restarted and the process continued. If I disconnect the One Connect Mini I can use the TV and apps just fine, but I need the One Connect Mini to work so I can use my PS4 and sound system. Any ideas what is going on?

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