Dremel Variable - Speed Multipro Rotary Tool 395 "s1j" Questions

rotary tool Model S1J-AJ2-10 This rotary tool came in a kit with 230 piece accessories. Hasn't been used in 6 yrs. but it doesn't run t all. Does this mean the motor is fried or could it be something ...

I have a Durabuilt rotary tool model S1J-FE2-10 that I can't seem to get to hold a bit. The directions say to hold the spindle lock button down and put the bit into the collet and tighten. I doesn't ...