@saadav …. typically, vertical lines are caused by a loose/dirty ribbon connection or a faulty component on tone of your boards…tcon or mainboard. the picture you are showing isnt looking like a tcon issue. could be a mainboard problem or the ribbon connectors. i would try and disconnecting the ribbons to and from your main board and reseating them. mainboard issues would have many more lines on the screen, so check the ribbons first. disconnect all connectors and ribbons and reseat them properly.