A friend here on the forum sent me their evic thinking that perhaps I could fix it. When I plug the control head without the battery attached into the computer it will come up and say charging/uploading but when the battery is attached the computer won't recognize it. The main problem is that about 95% of the time the evic won't turn on. When it does turn on then it works fine until the battery needs charging or if you turn the power off then it won't turn back on. I have tried a couple different batteries but it makes no difference. I'm not opposed to taking the unit apart if it is possible. I just haven't figured out yet how to get the top off of the control head yet. I did try a software reset like they recommend on the website. If something needs resoldered or something then that is no problem for me. Any advice is welcome.