im having a problem with my xt3. whenever I leave the camera with fully charged battery inside, it is going into factory reset once the battery is discharged which happens in 3 to 4 days. otherwise the camera working normally. I would like to know if there is a problem with the camera. I'm advised by the Fuji service to send the camera for service. they did not comment on what could the possible reason. I would like to know from some of you what could the reason. does it contain an internal battery which needs replacement or is could it be some other reason? please help.