Hello, there are no aesthetic problems, you take out the lens, with a heat gun you take them out of the LEDs, with mayan desoldante and flux clean the welding of the ruler, you put a little tin, you stain the led, you heat the ruler with the gun heat until you see that the tin melts and you place the led, now the aesthetic comes, when you put the lens it has to be at the same height of the original lenses and perfectly centered but it makes spots of light on the screen ... the LEDs burn because they come from the user menu with 100% backlight, if you download the LEDs they will thank you I leave you a video so you can see how technology works, it's another TV but it's the same I also leave you a practical tool that will help you https://yoreparo.com/tv/televisores/lcd/preguntas/1561760/probador-de-tiras-led?p=5833971#5833971 successes