I´ve bought mine amplug 2 a week ago and the light, which in the first days (and in every video I´ve watched in Youtube) was green had become orange/yellow (see the picture below). I tried changing the batteries but it didn´t help.
I don´t know if it´s my mind or not, but it seems to me that since the light´s color have changed, the E string sound has become muffled and seeming out of tune.
Does anyone know what this orange/yellow light means?
Thank you.