Ok I see. It should count under warrenty.Oh yeah we tried/done updating the firmware via usb and usb blaster after the first time happened, and yes Ive tried difference source its the same issue.
From what I know it counts under warranty so the good news it I wouldnt need to spend money, just time.
Did you check if it happens when the headphone cable is connected?
Maybe it activates something
1. Unplug headphone
2. Try to replicate