Two of my students had their profile disappear, meaning they can't access their code now. Is there a way to access it another way?

We have a Zumi that is giving inconsistent gyroscope readings. We reset the gyroscope, and the x and y values seem okay, but then they change and it impacts on our program. Is there something we can do to make the readings consistent?

I have a new Zumi that is not charging. When the usb charging cable is plugged in and Zumi is powered off, there are no LED lights and the display is blank. When I turn Zumi on, it is showing 0% battery. I have tried different cables, I have also checked the power slot and it seems okay and not faulty.