Fernando Custodio de Macedo

I have a problem in my LG 55UF8500 When I watch TV, the imagem is ok. But when I open the Smartv menu, the frames become distorted. Has anyone had this problem and should help me? I tryed a donwgrade with Simon's LgDTVUpDater , but doesn't work. I think what my television has a Brazilian or Latin American firmware and don't recognizes in this software. Ps. I did the fatory reset, but the problem persist Follow the below a video link