Reply to Korg Zero4

So I've had this Zero4 for about a year and a half and just recently it's been cutting out, but never in the middle of a song or after it's been playing. It only happens when I start it up. It will play the music for like 2 seconds and then cut out. I've unplugged/plugged back in all the wires. Shut it down turned it back on, reset my macbook. sometimes it will work after all that sometimes it wont. Does anyone else have this problem? I don't know what's wrong with it and it's really starting to piss me off. Any help would be appreciated