My xbox wont turn on and the power brick light turns red every time I plug it into the xbox. I know its not the power brick that's broken because its a orange light until I plug it into my xbox then it turns red. Plus the power brick works for my brothers xbox. So does anyone know why my xbox is doing this?

P.S this shortly happened after modding my LED lights. The lights were fine and a couple days later I went to fix the middle one that i put on wrong and now my xbox is broke. :/