Yesterday while detecting, I would get a good signal but sometimes when I would try to pinpoint it with the 250, it would show on the display, but I would either get no audio at all, or a very faint one I could hardly hear. I thought something was wrong with the headphones, but other signals I had no problem at all hearing the pinpoint sound. What gives? Does it indicate a false or a junk target or what?

Mine does that too sometimes. I guess if it's faint I assume that it's very deep. Or if I don't get any audio I will try from different angles. Usually I get it to produce a tone by experimenting. Good luck !!