The following information will tell you how to manually update through the USB port
Updating Through the USB 2.0 Port:
Important: A USB drive and a computer with an internet connection are required for this method.
First the firmware will need to be downloaded to the USB drive. To download the firmware, perform the following:
Important: The folder(s) which make up the firmware must be placed in the root directory (or main folder) of the USB drive. Do not put the firmware folder(s) in any other sub folders, as the TV will not be able to browse to and locate the firmware. It is okay if USB drive contains other files, these will be ignored by the TV.
The next step is to transfer the firmware to the TV. To transfer the firmware, perform the following:
Important: This option will be unaccessible (grayed out) during the first 60 seconds after the TV powers on, or if the Smart Hub is open. If the option is grayed out, and the TV has been on for over 60 seconds, verify that the source has been set to TV and is not on Smart Hub.
Important: If the message appears "There are no new updates..." or "No Firmware File Found", verify the following:
your company STINKS!!!! 9 friggin pages of the same thing and you STILL haven't fixed it. I have done EVERY SINGLE THING suggested on those 9 pages n still nothing!! I WILL NEVER BUY ANOTHER SAMSUNG, EVER!!!!
Exactly how I feel. Guess what my TV is currently doing? Not working once again. We have this big expensive TV that we can’t use and have to go through more reliable devices and companies, such as our PS4 or Blu-ray player, to watch our shows and movies. I still haven’t received a reliable solution to this issue, only exhausting temporary ones that only work until it once again failes and then I have to find a new solution. At this point we just stop trying and every few weeks attempt to connect and it either does or does not. Still waiting for Samsung to resolve this!
We are checking to see if you still need assistance.
Had no idea anyone responded until just now because I was not tagged and did not receive notification. Looks like a lot of steps but will give it a shot. Not getting hopes up with this company tho that's for sure.