http://my.opera.com/mcduret/blog/200...3100-battery-d
oor

I think the "correct" surgery is too delicate to be realistic.

This "think outside the box" fix works fantastically - I'm looking at my 3100
with that fix as we speak. The only downside is that one can't use the Nikon
on a tripod any more, but I guess a big rubber band would temporarily hold the
battery door shut if one sporadically needs a tripod mount.

Art