The disc doesn't spin, the unit powers on fine, can look at the memory card, etc... but the disc does not spin when turned on, or when I hit "cd player" from the menu.

I removed the entire modhip (desoldered) and doublechecked everything, I can't see ANYTHING that would have possibly gone wrong (burned anything, anything blown, solder drops, mis-solders, NOTHING).

I'm just wondering if that is what would happen if I did screw something up. Seems like no matter what I would have done wrong, the disc would at least still spin upon turning the system on. I've double checked the laser apparatus wires, and they're fine (no damage, properly seated)