My TV remote control doesn't work - brand and name EMTEC EKCOH120.

I have universal remote control EMTEC EKCOH120. I was clicking setup and then codes which I need to use to it work on LG TV, but it stopped to work. Then I start to getting out batteries and click all buttons, then that what before. Now it stopped work, too. (Those things were working for about 3 hours, then I was making it again.) The red diode skine when click, but nothing happens.