If you are looking to update Samsung smart tv via USB cable then first you need to download latest Samsung system firmware software and download it on your USB cable and insert the USB cable back of your Samsung smart tv in USB cable port and turn on and upgrade Samsung tv software via USB, lets see them in detail below.
How to Update Samsung TV Software via USB?
Step 1: Navigate to Samsung website and select your Samsung smart tv model and download Samsung smart tv latest firmware software.
Step 2: Once download extract zip folder and copy the latest firmware version to your USB or external hard drive.
Step 3: Insert the USB cable on back of your Samsung smart tv USB port.
Step 4: Now turn on your Samsung smart tv and press home button
Step 5: Using Remote, Navigate to settings->Support -> Software update
Step 6: Click on Software update and click on Update now.
Step 7: After inserting USB cable, once you click on update now it will prompt you and ask browse files on USB flash Drive and click on Yes.
Step 8: Samsung smart tv will automatically check for software version installed on your USB flash drive and version which is installed on your Samsung smart tv.
Step 9: Samsung smart tv will automatically detects and upgrade Samsung smart tv and installed the latest version from the USB file.
Once Samsung smart tv installs the latest software it will reboot your Samsung smart tv once successfully installed.
Download Samsung Smart tv firmware update?
Navigate to Samsung website and select your Samsung smart tv model and check for latest firmware update and click on download to download latest Samsung firmware software.
Download the latest firmware from Samsung website and insert the USB drive on back of your tv.