Click to expand.Assuming that you've got the Baud rate and other parameters set up as per the TV's serial input requirements, the simplest possibility is that you require a STRAIGHT-connected cable, rather than the CROSSED cable you bought on Ebay. The simplest way now is to buy a CROSS-connected RS232, 9-pin, male to female extension cable and connect the 2 cables together, which then gives a STRAIGHT connection. If that still doesn't work, it's probably because a different wiring schema has been used for the 3.5mm plug end. In which case, you'll need to find out the required wiring for each end, and buy the connectors to make your own cable.

The firmware updates are required to enhance the efficiency and use of the Smart TV's as it adds variety of features and options to the TV. On your computer log on to and scroll down to select the Type / Subtype & Model no. Of your Samsung TV and click the button Manuals & Downloads at the bottom. Click on Manuals & Downloads, it will take us to the Download page, locate Firmware from the options on the left hand side and click it. On the firmware download page, choose the latest release date and click on the file symbol, and it will start the download of the upgrade file.

Choose the location where you would like to save the file on your computer. Once the files are saved, extract the zip file to a separate folder and then copy the extracted folder to the USB Drive.( Do not copy the compressed file, as the TV might not be able to recognize the format) e).

Once you have completed copying the files to the USB drive, connect the USB drive to the USB jack in the TV. Make sure that the TV is switched off when you connect the USB drive and then Power On. NOTE: Make sure that the TV is not switched off or the USB drive plugged out while you follow the below steps.

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F). Press Menu on the remote control and scroll down to Support option on the menu page and press OK / Enter. Note: For Old series: Start > Menu > Support option>press OK For New series (K &M series): Home > Settings > Support option>press OK g). Scroll to right and choose Software Update and press OK / Enter. Make sure that the USB drive which contains the firmware update file is connected and detected.

Home Forums > TV Forums > Samsung TVs Forum > Updating Samsung LE40F71B firmware. Discussion in 'Samsung TVs Forum' started by EatGameRepeat, Dec 5, 2014. Feb 27, 2015  Nokia x2ds after kitkat 4.4 install and google service. Also if no connection show then remove google accounts then open play store app then ent.

On the screen choose By USB and press OK / Enter. Once you press OK / Enter, the setup will automatically detect the setup file on the USB drive and start the installation.