I was out in the field detecting yesterday, the update is showing everything was updated correctly including the headphones but when the machine is turned off on a couple of times during the day, instead of using high square tone which is my preference all it shows is square tone and nothing else? I’ve put the update on many times now so it’s definitely messing the control up some how, I don’t know if it’s the firmware that’s causing it or if it needs flashing maybe but it’s definitely a strange issue to sort out any help would be appreciated thanks Mark