My ef-42 flash just stopped working suddenly in the middle of a family event. The flash will turn on, the test/charge button lights up and I can hear it starting up, but it will not fire. I have used it for about a year. Is it possible that the bulb just burnt out? If so, should I send it in for repair? or just buy a new speedlite? I am looking at the nissan i40, based on recommendations online, but I have no idea really. I have the x-e2.