Looking to replace the backlights on a 55s405tnaa
I was told the unit has a bad backlight and that the whole screen needs to be replaced but from what I've researched I just need to replace the backlights I think as I can see the video with a flashlight and there's sound. So I'm hoping for some direction as I'm not sure if I need the exact 55s405tnaa replacement backlights or just 55s405? Can this model reflector sheet need to be removed or do I need to cut it to reach the backlights with a exacto knife? I'm trying to be as prepared as possible so any advice is welcome.