Chosen Solution

3d depth slider on my x&y edition 3ds xl is “cemented” in the off position and there is no way to get passed the 3d check screen during start up. Looking for a way to unstick it it without having to take it somewhere I can’t afford to have it done for me.

By cemented do you just mean that the switch itself is stuck? If so you could just try to pry in out of the off position using a small tool such as a guitar pick.