I purchased mine used and I would assume it is not under warranty (non-transferable). I did a full reset last night and it seemed to quiet it down quite a bit. I will give it a run for a little while with it on the factory settings. I managed a wheatie others passed over this weekend at a site we've been detecting for a while, so I think it's working fine. Haven't found anything super deep but then again it has to be there to be found, right? Can't assume every place has deep signals. I found a VT copper at about 9" here previously though.