Sansa® Clip | Sansa® Clip+

[severe]

I purchased my clip plus player refurbished and the volume seems partially broken. It doesn't go up in volume and appears physically lower on the top side like something either came loose or broke.  So the only way I could make the volume work was by installing Rockbox and setting a preset volume control. What would I have to do to get it to work using the original program.  Would  it involve soldering?